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Number of items: 202.

Lee, Wen Zhao ; Ong, Duu Sheng ; Choo, Kan Yeep ; Yilmazoglu, Oktay ; Hartnagel, Hans L. (2021)
Monte Carlo evaluation of GaN THz Gunn diodes.
In: Semiconductor Science and Technology, 36 (12)
doi: 10.1088/1361-6641/ac2b4d
Article, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Hajo, Ahid S. ; Nedeoglo, Natalia D. ; Nedeoglo, Dmitrii D. ; Preu, Sascha ; Küppers, Franko ; Hartnagel, Hans L. (2018)
Enhanced Responsivity of ZnSe‐Based Metal–Semiconductor–Metal Near‐Ultraviolet Photodetector via Impact Ionization.
In: physica status solidi (RRL) – Rapid Research Letters, 12 (2)
doi: 10.1002/pssr.201700418
Article, Bibliographie

Küppers, Franko ; Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Al-Daffaie, Shihab ; Oprea, Ion ; Ong, Duu Sheng ; Hartnagel, Hans L. (2018)
Internal Quantum Efficiency Enhancement of InGaN/GaN LEDs WITH Mg-Si pin-Doped GaN Quantum Barrier.
9th International Conference on Materials Science and Condensed Matter Physics, Chisinau, Moldova.
Conference or Workshop Item, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Preu, Sascha ; Küppers, Franko ; Hartnagel, Hans L. (2018)
Proposal for a Monolithic Broadband Terahertz Quantum Cascade Laser Array Tailored to Detection of Explosive Materials.
In: Sensor Letters, 16 (1)
doi: 10.1166/sl.2018.3919
Article, Bibliographie

Sirkeli, V. P. ; Yilmazoglu, Oktay ; Ong, D. S. ; Preu, Sascha ; Küppers, F. ; Hartnagel, Hans L. (2017)
Resonant Tunneling and Quantum Cascading for Optimum Room-Temperature Generation of THz Signals.
In: IEEE Transactions on Electron Devices, 64 (8)
doi: 10.1109/TED.2017.2718541
Article, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Al-Daffaie, Shihab ; Preu, Sascha ; Küppers, Franko ; Hartnagel, Hans L. (2017)
1.33 THz room-temperature quantum cascade lasers based on ZnMgSe/ZnSe.
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2017 42nd International Conference on.
Conference or Workshop Item, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Al-Daffaie, Shihab ; Oprea, Ion ; Ong, Duu Sheng ; Küppers, Franko ; Hartnagel, Hans L. (2017)
Resonant tunneling transport in Zn x Be 1-x Se/ZnSe/Zn y Be 1-y Se asymmetric quantum structures.
Nanotechnology VIII.
Conference or Workshop Item, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Al-Daffaie, Shihab ; Oprea, Ion ; Ong, Duu Sheng ; Küppers, Franko ; Hartnagel, Hans L. (2016)
Efficiency enhancement of InGaN/GaN light-emitting diodes with pin-doped GaN quantum barrier.
In: Journal of Physics D: Applied Physics, 50 (3)
Article, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Küppers, Franko ; Hartnagel, Hans L. (2015)
Effect of p-NiO and n-ZnSe interlayers on the efficiency of p-GaN/n-ZnO light-emitting diode structures.
In: Semiconductor Science and Technology, 30 (065005)
Article, Bibliographie

Sirkeli, Vadim P. ; Yilmazoglu, Oktay ; Küppers, Franko ; Hartnagel, Hans L. (2015)
Effect of p-NiO Interlayer on Internal Quantum Efficiency of p-GaN/n-ZnO Light-Emitting Devices.
In: Journal of Nanoelectronics and Optoelectronics, 9 (6)
Article, Bibliographie

Hartnagel, Hans L. ; Al-Daffaie, Shihab (2015)
Graphene Plasmonics for the Enhancement of THz-Signal Transfer.
The 39th European Workshop on Compound Semiconductor Devices and Integrated Circuits.
Conference or Workshop Item, Bibliographie

Yilmazoglu, Oktay ; Evtukh, Anatoli ; Al-Daffaie, Shihab ; Biethan, Jens-Peter ; Pavlidis, Dimitris ; Litovchenko, Vladimir ; Hartnagel, Hans L. (2014)
Electron field emission from nanostructured semiconductors under photo illumination.
In: Turkish Journal of Physics, 38 (3)
Article, Bibliographie

Hartnagel, Hans L. ; Preu, Sascha (2014)
Graphene THz Circuitry by Nano-Constriction Designs.
WOCSDICE 2014.
Conference or Workshop Item, Bibliographie

Yilmazoglu, Oktay ; Al-Daffaie, Shihab ; Hartnagel, Hans L. ; Joshi, R. ; Yadav, S. ; Schneider, J. J. ; Nick, C. ; Thielemann, C. (2012)
CNT photocathodes based on GaAs high-frequency photoswitches.
Vacuum Nanoelectronics Conference (IVNC), 2012 25th International.
Conference or Workshop Item, Bibliographie

Koops, Hans W. P. ; Al-Daffaie, Shihab ; Hartnagel, Hans L. ; Rudzinski, A. (2012)
Development of a miniaturized Dynatron THz-Oscillator with a FEBIP system.
Vacuum Nanoelectronics Conference (IVNC), 2012 25th International.
Conference or Workshop Item, Bibliographie

Koops, Hans W. P. ; Rudzinski, Axel ; Nouvertné, Frank ; Al-Daffaie, Shihab ; Hartnagel, Hans L. (2012)
Portable 0.1 To 10 THz Radiation Source With Free Electron Beams.
3rd ITG Int. Vacuum Electronics Workshop Physikzentrum Bad Honnef , Germany.
Conference or Workshop Item, Bibliographie

Koops, Hans W. P. ; Al-Daffaie, Shihab ; Hartnagel, Hans L. (2012)
Portable source with free electron beams for 0.1 to 10 THZ.
In: Proceedings of WOCSDICE-EXMATEC
Article, Bibliographie

Al-Daffaie, Shihab ; Acedo, Pablo ; Hartnagel, Hans L. (2012)
Simulation of a CW THz camera scheme.
In: Proceedings of WOCSDICE-EXMATEC
Article, Bibliographie

Vicente, C. ; Wolk, D. ; Hartnagel, Hans L. ; Gimeno, B. ; Boria, V. E. ; Raboso, D. (2007)
Experimental analysis of passive intermodulation at waveguide flange bolted connections.
In: IEEE transactions on microwave theory and techniques, 55 (5)
doi: 10.1109/TMTT.2007.895400
Article, Bibliographie

Dragoman, M. ; Müller, A. ; Neculoiu, D. ; Konstantinidis, G. ; Grenier, K. ; Dubuc, D. ; Bary, L. ; Plana, R. ; Fourn, E. ; Flahaut, E. ; Hartnagel, Hans L. (2007)
Carbon nanotubes-based microwave and millimeter wave sensors.
Conference or Workshop Item, Bibliographie

Schoenherr, Daniel ; Sydlo, Cezary ; Goebel, Thorsten ; Feiginov, Michael N. ; Hartnagel, Hans L. ; Meissner, Peter ; Bach, H.-G. ; Kunkel, R. ; Mekonnen, G. G. ; Zhang, R. (2007)
Characterization of THz emitter based on a high-speed p-i-n photodiode.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. (2007)
Design and characterization of Schottky structures for THz-applications.
In: Frequenz, 61
Article, Bibliographie

Litovchenko, V. ; Evtukh, A. ; Semenenko, M. ; Grigoriev, A. ; Yilmazoglu, Oktay ; Hartnagel, Hans L. ; Sirbu, L. ; Tiginyanu, I. M. ; Ursaki, V. V. (2007)
Electron field emission from narrow band gap semiconductors (InAs).
In: Semiconductor science and technology, 22
Article, Bibliographie

Nicolae, B. ; Chowdhury, D. Roy ; Hartnagel, Hans L. (2007)
Experimental and modelled configuration of double-barrier HBV based on Al0.7Ga0.3As/GaAs.
Conference or Workshop Item, Bibliographie

Ong, D. S. ; Hartnagel, Hans L. (2007)
Generation of THz signals based on quasi-ballistic electron reflections in double-heterojunction structures.
In: Semiconductor science and technology, 22
Article, Bibliographie

Halbritter, Hubert ; Sydlo, Cezary ; Koegel, Benjamin ; Riemenschneider, Frank ; Hartnagel, Hans L. ; Meissner, Peter (2007)
Impact of micromechanics on the linewidth and chirp performance of MEMS-VCSELs.
In: IEEE/LEOS journal of selected topics on quantum electronics, 13
Article, Bibliographie

Sigmund, Jochen ; Zogal, Karolina ; Lampin, J. F. ; Ivannikov, V. ; Sydlo, Cezary ; Feiginov, Michael N. ; Pavlidis, Dimitris ; Meissner, Peter ; Hartnagel, Hans L. (2007)
Low-temperature grown GaAsSb with sub-picosecond photocarrier lifetime for continuous-wave terahertz applications.
Conference or Workshop Item, Bibliographie

Neculoiu, D. ; Konstantinidis, G. ; Müller, A. ; Kostopoulos, A. ; Vasilache, D. ; Mutamba, Kabula ; Sydlo, Cezary ; Hartnagel, Hans L. ; Bary, L. ; Plana, R. (2007)
Microwave FBAR structures fabricated using micromachined GaN membranes.
Conference or Workshop Item, Bibliographie

Kunkel, R. ; Beling, A. ; Bach, H.-G. ; Mekonnen, G. G. ; Schmidt, D. ; Sydlo, Cezary ; Schoenherr, Daniel ; Feiginov, Michael N. ; Hartnagel, Hans L. ; Meissner, Peter (2007)
Monolithic integration of a waveguide-integrated p-i-n-photodiode and a planar antenna for THz applications.
Conference or Workshop Item, Bibliographie

Dragoman, M. ; Takacs, A. ; Muller, A. A. ; Hartnagel, Hans L. ; Plana, R. ; Grenier, K. ; Dubic, D. (2007)
Nanoelectromechanical switches based on carbon nanotubes for microwave and millimetre waves.
In: Applied physics letters, 90
Article, Bibliographie

Ong, D. S. ; Hartnagel, Hans L. (2007)
Novel concept for THz signals generations in heterostructures.
In: Physica status solidi / Rapid research letters, 1
Article, Bibliographie

Vicente, C. ; Hartnagel, Hans L. (2007)
Passive intermodulation at junctions.
Conference or Workshop Item, Bibliographie

Yilmazoglu, Oktay ; Hartnagel, Hans L. ; Pavlidis, Dimitris ; Evtukh, A. ; Litovchenko, V. ; Semenenko, M. ; Gorbanyuk, T. ; Grigoriev, A. (2007)
Pecularities of electron field emission from nanostructured GaN and AlGaN.
Conference or Workshop Item, Bibliographie

Nicolae, B. ; Chowdhury, D. Roy ; Pop, G. ; Hartnagel, Hans L. ; Pasquet, D. (2007)
The Planar Approach to a Al0.12Ga0.88N/GaN Based Double Barrier HBV.
In: Frequenz, 61
Article, Bibliographie

Dragoman, M. ; Cismaru, A. ; Müller, A. A. ; Dragoman, D. ; Hartnagel, Hans L. ; Plana, R. (2007)
RF NEMS-carbon-nanotube based nanoelectromechanical systems for microwave and millimeter wave applications.
8th International Symposium on RF MEMS and RF Microsystems (MEMSWAVE 2007). Barcelona (26.06.2007- 29.06.2007)
Conference or Workshop Item, Bibliographie

Goebel, Thorsten ; Schoenherr, Daniel ; Sydlo, Cezary ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2007)
Resonant metal gratings for THz material characterization.
Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics. Cardiff, Wales, UK (02.09.2007-09.09.2007)
doi: 10.1109/ICIMW.2007.4516508
Conference or Workshop Item, Bibliographie

Nicolae, B. ; Chowdhury, D. Roy ; Hartnagel, Hans L. (2007)
S Parameter Measurements of Superlattice Heterostructure Barrier Junctions towards THz Varactors.
In: Frequenz, 61
Article, Bibliographie

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. (2007)
THz Schottky diodes on epitaxial AIGaAs-membrane.
2007 Joint 32nd International Conference on Infrared and Millimeter Waves and the 15th International Conference on Terahertz Electronics. Cardiff, UK (03.09.2007-07.09.2007)
doi: 10.1109/ICIMW.2007.4516711
Conference or Workshop Item, Bibliographie

Goebel, Thorsten ; Schoenherr, Daniel ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2007)
THz grating sensors for investigation of thin dielectric layers.
Conference on Lasers and Electro-Optics Europe (CLEO EUROPE 2007). München (17.06.2007-22.06.2007)
doi: 10.1109/CLEOE-IQEC.2007.4386396
Conference or Workshop Item, Bibliographie

Ong, D. S. ; Hartnagel, Hans L. (2007)
A new concept for THz frequency multipliers.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Hartnagel, Hans L. (2006)
Generalized model of the metal/n-GaN Schottky interface and improved performance by electrochemical Pt deposition.
In: Journal of Vacuum Science and Technology B, 24
Article, Bibliographie

Halbritter, Hubert ; Sydlo, Cezary ; Kögel, Benjamin ; Riemenschneider, F. ; Jatta, Sandro ; Hartnagel, Hans L. ; Meissner, Peter (2006)
Micromechanic effects and their impact on the characteristics of MEMS-tunable lasers.
IEEE/LEOS International Conference on Optical MEMS and Their Applications, 2006. Oulu, Finland (21.08.006-24.08.2006)
doi: 10.1109/OMEMS.2006.1708293
Conference or Workshop Item, Bibliographie

Mutamba, K. ; Yilmazoglu, Oktay ; Cojocari, Oleg ; Sydlo, Cezary ; Pavlidis, Dimitris ; Hartnagel, Hans L. (2006)
Technology of Wide-Bandgap Diode Struvtures for High Frequency Operation.
Conference or Workshop Item, Bibliographie

Mutamba, K. ; Sydlo, C. ; Yilmazoglu, O. ; Neculoiu, D. ; Konstantinidis, G. ; Georgakilas, A. ; Chatzopoulos, Z. ; Müller, A. ; Hartnagel, Hans L. (2006)
A new compound semiconductor technology for advanced RF MEMS applications.
Conference or Workshop Item, Bibliographie

Sydlo, Cezary ; Kögel, Benjamin ; Cojocari, Oleg ; Feiginov, Michael N. ; Hartnagel, Hans L. ; Meissner, Peter (2005)
Broadband power detector using a circularly-toothed planar logarithmic-periodic antenna.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Hartnagel, Hans L. ; Schmidt, L.-P. (2005)
DC and IF-noise performance optimisation of GaAs Schottky diodes for THz applications.
In: Semiconductor science and technology, 20
Article, Bibliographie

Cojocari, Oleg ; Sydlo, Cezary ; Hartnagel, Hans L. ; Tiginyanu, I. M. (2005)
Quasi-vertical Schottky-structures for THZ-Applications.
Conference or Workshop Item, Bibliographie

Mottet, B. ; Sydlo, Cezary ; Mutamba, ; Cojocari, Oleg ; Hartnagel, Hans L. (2005)
RF and thermal design of compound semiconductor devices using MEMS approach.
In: Frequenz, 59
Article, Bibliographie

Sigmund, Jochen ; Sydlo, Cezary ; Hartnagel, Hans L. ; Benker, Nathalie ; Fuess, Hartmut ; Rutz, F. ; Kleine-Ostmann, T. ; Koch, M. (2005)
Structure investigation of low-temperature-grown GaAsSb : a material for photoconductive terahertz antennas.
In: Applied physics letters, 87
Article, Bibliographie

Biber, S. ; Cojocari, Oleg ; Rehm, G. ; Mottet, Bastian ; Schmidt, L.-P. ; Hartnagel, Hans L. (2004)
A novel system for systematic microwave noise and DC characterization of terahertz Schottky diodes.
In: IEEE Transactions on Instrumentation and Measurement, 53 (2)
doi: 10.1109/TIM.2003.820487
Article, Bibliographie

Vincze, A. ; Kovac, J. ; Srnanek, R. ; Sigmund, Jochen ; Hartnagel, Hans L. ; Irmer, G. (2004)
Annealing behaviour of low temperature grown GaAs investigated by raman spectroscopy.
Conference or Workshop Item, Bibliographie

Vincze, A. ; Michalka, M. ; Podskocova, J. ; Sigmund, Jochen ; Kovac, J. ; Hartnagel, Hans L. (2004)
Annealing investigation of LT GaAs with AFM.
Conference or Workshop Item, Bibliographie

Sydlo, Cezary ; Kögel, Benjamin ; Cojocari, Oleg ; Hartnagel, Hans L. ; Meissner, Peter (2004)
Characterisation of a circularly-toothed planar logarithmic-periodic antenna for broadband power detection.
In: Frequenz, 58 (9/10)
doi: 10.1515/FREQ.2004.58.9-10.207
Article, Bibliographie

Mendis, Rajind ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2004)
Coherent generation and detection of continuous THz waves using two photomixers driven by laser diodes.
Conference or Workshop Item, Bibliographie

Mendis, R. ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2004)
Continuous-wave terahertz system for spectroscopy and imaging.
Conference or Workshop Item, Bibliographie

Evtukh, A. A. ; Hartnagel, Hans L. ; Litovchenko, V. G. ; Semenenko, M. O. ; Yilmazoglu, Oktay (2004)
Enhancement of electron field emission stability by nitrogen-doped diamond-like carbon film coating.
In: Semiconductor science & technology, 19
Article, Bibliographie

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Hartnagel, Hans L. ; Schmidt, L.-P. (2004)
GaAs Schottky diode fabrication for THz-frequency mixer applications.
Conference or Workshop Item, Bibliographie

Handel, P. H. ; Hartnagel, Hans L. ; Sia, K. E. ; Mishra, U. K. ; York, R. (2004)
GaN HEMT geometry and piezoelectric quantum 1/f noise.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Popa, V. ; Ursaki, V. V. ; Tiginyanu, I. M. ; Hartnagel, Hans L. ; Daumiller, I. (2004)
GaN Schottky multiplier diodes prepared by electroplating : a study of passivation technology.
In: Semiconductor science and technology, 19
Article, Bibliographie

Saglam, Mustafa ; Irvine, A. C. ; Hartnagel, Hans L. (2004)
Heterostructure barrier varactors on gold substrate.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Sydlo, Cezary ; Hartnagel, Hans L. ; Schmidt, L.-P. (2004)
IF-noise improvement of the GaAs Schottky diodes for THz-frequency mixer applications.
Conference or Workshop Item, Bibliographie

Zverev, V. N. ; Muhammad, M. ; Rahman, S. ; Debray, P. ; Saglam, Mustafa ; Sigmund, Jochen ; Hartnagel, Hans L. (2004)
Magnetotransport properties of two-dimensional electron gas in AlSb/InAs quantum well structures designed for device applications.
In: Journal of applied physics, 96
Article, Bibliographie

Schür, J. ; Biber, S. ; Gumbmann, F. ; Mottet, Bastian ; Cojocari, Oleg ; Schmidt, L.-P. ; Hartnagel, Hans L. (2004)
Micromachined split-block Schottky-diode mixer for 600GHz.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Popa, V. ; Ursaki, V. V. ; Tiginyanu, I. M. ; Mutamba, Kabula ; Saglam, Mustafa ; Hartnagel, Hans L. (2004)
Micrometer-size GaN Schottky-diodes for MM-wave frequency multipliers.
Conference or Workshop Item, Bibliographie

Dehé, Alfons ; Beilenhoff, Klaus ; Fricke, Klaus ; Klingbeil, Harald ; Krozer, Viktor ; Hartnagel, Hans L.
ed.: Webster, John G. (2004)
Microwave measurement.
In: Electrical measurements, signal processing and displays
Book Section, Bibliographie

Vicente, C. ; Mattes, M. ; Cervello, A. ; Wolk, D. ; Mottet, Bastian ; Hartnagel, Hans L. ; Mosig, J. ; Raboso, D. (2004)
Multipactor and corona discharge, prediction in rectangular waveguide based microwave components.
Conference or Workshop Item, Bibliographie

Vicente, C. ; Mattes, M. ; Cervello, A. ; Wolk, D. ; Mottet, Bastian ; Hartnagel, Hans L. ; Mosig, J. R. ; Raboso, D. (2004)
Prediction of corona discharge : towards a simulation tool for arbitrary geometries.
Conference or Workshop Item, Bibliographie

Litovchenko, V. G. ; Evtukh, A. A. ; Kryuchenko, Yu. ; Goncharuk, N. M. ; Yilmazoglu, Oktay ; Mutamba, Kabula ; Hartnagel, Hans L. ; Pavlidis, Dimitris (2004)
Quantum size resonance tunneling in the field emission phenomenon.
In: Journal of applied physics, 96
Article, Bibliographie

Altes, A. ; Mutamba, Kabula ; Heiderhoff, R. ; Hartnagel, Hans L. ; Balk, L. J. (2004)
Scanning near field thermal microscopy on a micromachined thin membrane.
In: Superlattices and Microstructures, 35 (3-6)
doi: 10.1016/j.spmi.2003.09.008
Article, Bibliographie

Mendis, R. ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2004)
Tunable CW-THz system with LTG-GaAs based log-periodic emitter.
Conference or Workshop Item, Bibliographie

Mendis, R. ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2004)
Tunable CW-THz system with a log-periodic photoconductive emitter.
Conference or Workshop Item, Bibliographie

Mendis, R. ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2004)
Tunable CW-THz system with a log-periodic photoconductive emitter.
In: Solid-state electronics, 48
Article, Bibliographie

Mottet, Bastian ; Sydlo, Cezary ; Kögel, Benjamin ; Robillard, Q. de ; Cojocari, Oleg ; Hartnagel, Hans L. (2004)
The impact of process optimisation on planar THz-Schottky device reliability.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Biber, S. ; Rodriguez-Girones Arboli, Manuel ; Mottet, Bastian ; Marchand, L. ; Schmidt, L.-P. ; Hartnagel, Hans L. (2004)
A new structural approach for uniform sub-micrometer anode metallization of planar THz Schottky components.
In: Semiconductor science & technology, 19
Article, Bibliographie

Biber, S. ; Cojocari, Oleg ; Rehm, G. ; Mottet, Bastian ; Schmidt, L.-P. ; Hartnagel, Hans L. (2004)
A novel system for systematic IF noise and DC characterization of THz Schottky diodes.
In: IEEE Transactions on Instrumentation and Measurement, 53 (2)
doi: 10.1109/TIM.2003.820487
Article, Bibliographie

Yilmazoglu, Oktay ; Pavlidis, Dimitris ; Litvin, Yu. M. ; Hubbard, S. M. ; Tiginyanu, I. M. ; Mutamba, Kabula ; Hartnagel, Hans L. ; Litovchenko, V. G. ; Evtukh, A. A. (2003)
Field emission from quantum size GaN structures.
In: Applied Surface Science, 220 (1-4)
doi: 10.1016/S0169-4332(03)00750-5
Article, Bibliographie

Litovchenko, V. G. ; Evtukh, A. A. ; Litvin, Yu. M. ; Goncharuk, N. M. ; Hartnagel, Hans L. ; Yilmazoglu, Oktay ; Pavlidis, Dimitris (2003)
Peculiarities of the electron field emission from quantum-size structures.
In: Applied Surface Science, 215 (1-4)
doi: 10.1016/S0169-4332(03)00283-6
Article, Bibliographie

Hartnagel, Hans L. (2003)
Electron emission modulation effects in microsize structures.
In: Semiconductor physics, quantum electronics and optoelectronics, 6 (1)
doi: 10.15407/spqeo6.01.062
Article, Bibliographie

Hartnagel, Hans L. ; Rodriguez-Gironés Arboli, Manuel (2003)
Current status and future prospects of semiconductor terahertz electronics.
In: IEICE transactions on electronics, E86-C (10)
Article, Bibliographie

Saglam, Mustafa ; Sigmund, Jochen ; Hartnagel, Hans L. (2003)
Einflüsse der Deckschichten auf die Ladungsträgerkonzentration und Elektronenbeweglichkeit in MBE-gewachsenen AlSb/InAs-Quantentöpfe.
Conference or Workshop Item, Bibliographie

Evtukh, A. A. ; Litovchenko, V. G. ; Litvin, Yu. M. ; Hartnagel, Hans L. ; Yilmazoglu, Oktay (2003)
Field emission from SiOx films deposited on Si and GaAs tip arrays.
Conference or Workshop Item, Bibliographie

Saglam, Mustafa ; Schumann, B. ; Dure, K. ; Domoto, C. ; Megej, Alexander ; Rodriguez-Gironés Arboli, Manuel ; Müller, J. ; Judaschke, R. ; Hartnagel, Hans L. (2003)
High performance 450 GHz GaAs-based heterostructure barrier varactor tripler.
In: IEEE electron device letters, 24
Article, Bibliographie

Miao, Jianmin ; Hartnagel, Hans L. (2003)
High-energy ion implantation : an alternative technology for micromachining 3-dimensional GaAs structures.
Book, Bibliographie

Saglam, Mustafa ; Mutamba, Kabula ; Megej, Alexander ; Sydlo, Cezary ; Hartnagel, Hans L. ; Daumiller, I. (2003)
Influence of polarization chages in Al 0.4 Ga 0.6 N/GaN barrier varactors.
In: Applied physics letters, 82
doi: 10.1063/1.1537516
Article, Bibliographie

Sigmund, Jochen ; Karova, K. ; Miehe, Gerhard ; Saglam, Mustafa ; Hartnagel, Hans L. ; Fuess, Hartmut (2003)
Investigation of a growth interruption under an As flux at AlSb/InAs interfaces with InSb bonds.
In: Journal of crystal growth
Article, Bibliographie

Valakh, M. Ya. ; Litovchenko, V. G. ; Strelchuk, V. V. ; Hartnagel, Hans L. ; Sigmund, Jochen (2003)
Manifestation of the intersubband plasmon-phonon excitations and the pecularities of interfaces in the Raman spectra of InAs/AlSb quantum well structures.
Conference or Workshop Item, Bibliographie

Ensling, David ; Hunger, Ralf ; Kraft, Daniel ; Mayer, Thomas ; Jaegermann, Wolfram ; Rodriguez-Girones Arboli, Manuel ; Ichizli, Victoria M. ; Hartnagel, Hans L. (2003)
Pulse Plating of Pt on n-GaAs(100) Wafer Surfaces: Synchrotron Induced Photoelectron Spectroscopy and XPS of Wet Fabrication Processes.
In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 200
doi: 10.1016/S0168-583X(02)01735-4
Article, Bibliographie

Biber, S. ; Schmidt, L.-P. ; Cojocari, Oleg ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Hartnagel, Hans L. (2003)
Systematic quality assessment of Schottky diodes for THz-applications.
Conference or Workshop Item, Bibliographie

Mendis, R. ; Sydlo, Cezary ; Sigmund, Jochen ; Feiginov, Michael N. ; Meissner, Peter ; Hartnagel, Hans L. (2003)
Tunable CW-THz system with a log-periodic photoconductive emitter.
Conference or Workshop Item, Bibliographie

Cojocari, Oleg ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Biber, S. ; Schmidt, L.-P. ; Hartnagel, Hans L. (2003)
Whisker-device-based optimisation of fabrication process for planar THz Schottky diode.
Conference or Workshop Item, Bibliographie

Saglam, Mustafa ; Schumann, B. ; Müllerwiebus, V. ; Megej, Alexander ; Auer, U. ; Rodriguez-Girones Arboli, Manuel ; Judaschke, R. ; Tegude, F. J. ; Hartnagel, Hans L. (2002)
450 GHZ mm-wave signal from frequency tripler with heterostructure barrier varactors on gold substrate.
In: Electronics letters, 38 (13)
Article, Bibliographie

Litovchenko, V. G. ; Evtukh, A. A. ; Goncharuk, N. M. ; Litvin, Yu. M. ; Hartnagel, Hans L. ; Yilmazoglu, Oktay (2002)
Anomalous field emission from quantum size structure.
Conference or Workshop Item, Bibliographie

Sydlo, Cezary ; Sigmund, Jochen ; Hartnagel, Hans L. ; Loata, G. ; Siebert, K. J. ; Roskos, H. G. (2002)
Efficient THz-emitters for low-temperature-grown GaAs photomixers.
Conference or Workshop Item, Bibliographie

Saglam, Mustafa ; Leo, E. ; Bozzi, M. ; Perregrini, L. ; Rodriguez-Girones Arboli, Manuel ; Arcioni, P. ; Hartnagel, Hans L. (2002)
Fabrication, testing and lumped element modeling of planar heterostructure barrier varactors.
Conference or Workshop Item, Bibliographie

Yilmazoglu, Oktay ; Pavlidis, Dimitris ; Litvin, Yu. M. ; Hubbard, S. M. ; Tiginyanu, I. ; Mutamba, Kabula ; Hartnagel, Hans L. ; Litovchenko, V. G. ; Evtukh, A. A. (2002)
Field emission from quantum size GaN whiskers.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, Kabula ; Pfeiffer, J. (2002)
III-V compound MEMS and optical communication tunable filters.
In: Micromachined microwave devices and circuits.- [Bucuresti]: Ed. Acad. Romane, 2002.- ISBN 973-27-0908-1.- S. 10-23
Article, Bibliographie

Sigmund, Jochen ; Saglam, Mustafa ; Hartnagel, Hans L. ; Miehe, Gerhard ; Fuess, Hartmut (2002)
Influence of growth interruptions at AlSb/InAs interfaces on the atomic morphology and electron transport properties.
Conference or Workshop Item, Bibliographie

Megej, Alexander ; Beilenhoff, Klaus ; Schuessler, M. ; Ziroff, A. ; Mottet, Bastian ; Yilmazoglu, Oktay ; Mutamba, Kabula ; Hamann, C. D. ; Baican, R. ; Hartnagel, Hans L. (2002)
Integrated microwave sensor for cavity-length measurement in machine engineering.
In: IEEE transactions on microwave theory and techniques, 5 (12)
Article, Bibliographie

Megej, Alexander ; Beilenhoff, Klaus ; Schuessler, M. ; Ziroff, A. ; Mottet, Bastian ; Yilmazoglu, Oktay ; Mutamba, Kabula ; Hamann, C. D. ; Baican, R. ; Hartnagel, Hans L. (2002)
Integrated microwave sensor for cavity-length measurement with sub-millimeter accuracy.
Conference or Workshop Item, Bibliographie

eds.: Isermann, Rolf ; Breuer, Bert ; Hartnagel, Hans L. (2002)
Mechatronische Systeme für den Maschinenbau : Ergebnisse aus dem Sonderforschungsbereich 241 ...
Book, Bibliographie

Hartnagel, Hans L. ; Mutamba, Kabula (2002)
Power sensors for microwave and millimeter-wave frequencies.
Conference or Workshop Item, Bibliographie

Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel ; Marchand, L. ; Garden, C. ; Cojocari, Oleg ; Mottet, Bastian ; Hartnagel, Hans L. (2002)
Process control and failure analysis implementation for THz Schottky-based components.
Conference or Workshop Item, Bibliographie

Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel ; Marchand, L. ; Garden, C. ; Cojocari, Oleg ; Mottet, Bastian ; Hartnagel, Hans L. (2002)
Process control methods for THz Schottky-based components.
Conference or Workshop Item, Bibliographie

Sydlo, Cezary ; Saglam, Mustafa ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Hartnagel, Hans L. (2002)
Reliability investigations on HBV using pulsed electrical stress.
In: Microelectronics reliability, 42
Article, Bibliographie

Sigmund, Jochen ; Saglam, Mustafa ; Hartnagel, Hans L. ; Zverev, V. N. ; Raichev, O. E. ; Debray, P. ; Miehe, Gerhard ; Fuess, Hartmut (2002)
Structural and transport characterization of AISb/InAs QW structures grown by MBE with two growth interruptions.
In: Journal of vacuum science & technology / B, 20
Article, Bibliographie

Hartnagel, Hans L. ; Ichizli, V. ; Rodriguez-Girones Arboli, Manuel (2002)
Surface, interface issues in THz electronics.
In: Applied surface science, 190
Article, Bibliographie

Mutamba, Kabula ; Megej, Alexander ; Beilenhoff, Klaus ; Weinzierl, J. ; Hartnagel, Hans L. (2002)
Technology of compound semiconductor MEMS for millimeter-wave power measurement.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, Kabula ; Brandt, Michael ; Yilmazoglu, Oktay (2002)
Verbindungshalbleitersensorik für mechatronische Systeme.
In: Mechatronische Systeme für den Maschinenbau : Ergebnisse aus dem SFB 241 "Integrierte mechanisch-elektronische Systeme für den Maschinenbau" (IMES)
Book Section, Bibliographie

Litvin, Yu. M. ; Evtukh, A. A. ; Yilmazoglu, Oktay ; Hartnagel, Hans L. (2002)
The influence of the self-organization nano-size structures on the electron field emission.
Conference or Workshop Item, Bibliographie

Debray, P. ; Zverev, V. N. ; Raichev, O. E. ; Hartnagel, Hans L. ; Sigmund, Jochen ; Saglam, Mustafa ; Kohn, E. ; Densienko, A. ; Ahmed, H. ; Irvine, A. C. ; Lee, S.-B. (2002)
A nanoscale electron waveguide for very high-speed analog-to-digital converters.
Conference or Workshop Item, Bibliographie

Lohrberg, H. ; Stoffel, B. ; Voß, B.
eds.: Isermann, Rolf ; Breuer, Bert ; Hartnagel, Hans L. ; Deutsche Forschungsgemeinschaft (2002)
Im Laufrad integrierte Messung der Kavitationsaggressivität in Turbomaschinen.
In: Mechatronische Systeme für den Maschinenbau : Ergebnisse aus dem Sonderforschungsbereich 241 "Integrierte Mechanisch-elektronische Systeme für den Maschinenbau (IMES)"
Book Section, Bibliographie

Mimura, H. ; Yilmazoglu, Oktay ; Shimawaki, H. ; Yokoo, K. ; Mutamba, K. ; Hartnagel, Hans L. (2001)
Emission characteristics of a gallium arsenide wedge emitter monolithically fabricated with an air-bridge and a cantilever anode.
Conference or Workshop Item, Bibliographie

Yokoo, K. ; Okamura, K. ; Hasegawa, H. ; Mimura, H. ; Yilmazoglu, Oktay ; Mutamba, Kabula ; Hartnagel, Hans L. ; Ishizuka, H. ; Kawamura, Y. (2001)
Experiments of microwave and optical wave radiation using field emission micro cathode.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Megej, A. ; Mutamba, K. (2001)
Microwave and millimeter-wave monolithic signal sources with MEMS-based power monitoring for sensing applications.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel (2001)
Semiconductor technology for THz integration.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel (2001)
Surface/interface issues in THz electronics.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Yilmazoglu, Oktay ; Mutamba, Kabula (2000)
Concepts of microwave power electronics based on electron field emission from structures fabricated in semiconducting materials.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Pfeiffer, J. ; Peerlings, J. ; Samal, N. ; Meissner, P. (2000)
Fabry-Pérot filter for WDM.
Conference or Workshop Item, Bibliographie

Yokoo, K. ; Okamura, K. ; Mimura, H. ; Yilmazoglu, Oktay ; Arslan, D. ; Hartnagel, Hans L. ; Ishizuka, H. (2000)
Field emission studies for microwave and optical wave generation.
Conference or Workshop Item, Bibliographie

Lin, Chih-I. ; Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel ; Saglam, Mustafa ; Szeliga, P. ; Hartnagel, Hans L. (2000)
From honey-comb to SMMIC: Schottky diodes at TU Darmstadt.
Conference or Workshop Item, Bibliographie

Mimura, H. ; Okamura, K. ; Shimawaki, H. ; Yokoo, K. ; Yilmazoglu, Oktay ; Hartnagel, Hans L. (2000)
GaAs lateral field emitters for generation of modulation beam using gunn effect.
Conference or Workshop Item, Bibliographie

Saglam, Mustafa ; Megej, A. ; Sigmund, Jochen ; Rodriguez-Girones Arboli, Manuel ; Mutamba, Kabula ; Ichizli, Victoria M. ; Lin, C.-I. ; Hartnagel, Hans L. (2000)
III-V Material systems for heterostructure barrier varactors.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, K. ; Pfeiffer, J. (2000)
III-V compound materials for MEMS including filters.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, Kabula ; Yilmazoglu, Oktay (2000)
New aspects of quantum electronics based MEMS.
Conference or Workshop Item, Bibliographie

Mottet, Bastian ; Sydlo, Cezary ; Hartnagel, Hans L. (2000)
Pulsed electrical stress techniques for the detection of non-thermal lifetime-problems with semiconductor devices and their IC's.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Lin, C. I. ; Rodriguez-Girones, M. ; Ichizli, V. ; Saglam, M. ; Szeliga, P. (2000)
Recent development in device technology for integrated THz circuits.
Conference or Workshop Item, Bibliographie

Lin, Chih-I. ; Saglam, Mustafa ; Rodriguez-Girones Arboli, Manuel ; Ichizli, Victoria M. ; Szeliga, P. ; Hartnagel, Hans L. (2000)
Recent development of Pt/n-GaAs Schottky diodes for THz applications.
Conference or Workshop Item, Bibliographie

Lin, Chih-I. ; Rodriguez-Girones Arboli, Manuel ; Ichizli, Victoria M. ; Saglam, Mustafa ; Szeliga, P. ; Hartnagel, Hans L. (2000)
Technological developments for THz electronics.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, Kabula ; Brandt, M. ; Yilmazoglu, Oktay (2000)
Verbindungshalbleitersensoren für mechatronische Systeme.
In: Thema Forschung, 6
Article, Bibliographie

Hartnagel, Hans L. ; Brandt, M. ; Mayer, K. ; Mutamba, Kabula ; Yilmazoglu, Oktay ; Megej, Alexander ; Lin, C. I. ; Rodriguez, M. (1999)
Contact free sensor signal transfer by microwave and RF links.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Pfeiffer, J. ; Mutamba, K. ; Peerlings, J. ; Riemenschneider, R. ; Meißner, P. (1999)
III-V Membrane structures for tunable Fabry-Pérot filters and sensor applications.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Mutamba, K. ; Brandt, M. ; Pfeiffer, J. ; Riemenschneider, R. ; Meißner, P. ; Breuer, B. ; Hennecke, Dietmar K. ; Stoffel, B. (1999)
III-V-Micromechanics for sensing applications in mechanical engineering and for optical communications.
Conference or Workshop Item, Bibliographie

Pfeiffer, Joachim ; Peerlings, J. ; Riemenschneider, Rolf ; Genovese, R. ; Aziz, M. ; Böhm, G. ; Amann, Markus-Christian ; Meissner, Peter ; Hartnagel, Hans L. (1999)
InP-based bulk-micromachined tunable filter applications for WDM systems.
In: SPIE Photonics East <1999, Boston>: Proceedings
Book Section, Bibliographie

Hartnagel, Hans L. ; Mutamba, K. ; Pfeiffer, J. ; Riemenschneider, R. ; Peerlings, J. (1999)
MEMS for sensing and optical communication systems.
In: Compound semiconductor, 5
Article, Bibliographie

Hartnagel, Hans L. ; Lin, C. I. (1999)
Passivation of compound-semiconductor surfaces for low-noise terahertz devices.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1999)
Proposal of a new type of non-linear component for harmonic extraction.
In: Frequenz, 53
Article, Bibliographie

Hartnagel, Hans L. (1999)
THz-device technology for monolithic integration using III-V semiconductors.
International Conference Terahertz Electronics. Nara, Japan (7.1999)
Conference or Workshop Item, Bibliographie

Krozer, Viktor ; Brandt, Michael ; Schüßler, Martin ; Hartnagel, Hans L. (1998)
Application of transmission line pulses for reliability characterisation of high temperature devices.
4th International High Temperature Electronics Conference (HiTEC '98). Albuquerque, NM, USA (14.06.1998-18.06.1998)
doi: 10.1109/HITEC.1998.676775
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Arslan, D. ; Brandt, M. ; Dehé, A. ; Mutamba, K. ; Vogt, A. (1998)
Compound semiconductor microsensors for applications in mechanical engineering.
Gallium Arsenide Applications Symposium. GAAS'98. Amsterdam, Nederlands (05.10.1998-06.10.1998)
Conference or Workshop Item, Bibliographie

Riemenschneider, Rolf ; Peerlings, Joachim ; Pfeiffer, Joachim ; Dehé, A. ; Vogt, Andreas ; Meißner, Peter M. ; Hartnagel, Hans L. ; Chitica, N. ; Daleiden, Jürgen ; Streubel, Klaus P. ; Künzel, Harald ; Goertz, W. (1998)
Mechanical-optical analysis of InP-based Bragg Membranes for selective tunable WDM receivers.
doi: 10.1117/12.302395
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. ; Brandt, M. ; Dehé, A. ; Simon, Ansgar (1998)
Mikro-Sensorik für den Einsatz in Maschinen bis hin zum Satelliten.
In: Thema Forschung, (1)
Article, Bibliographie

Hartnagel, Hans L. ; Mutamba, ; Sigurdardottir, A. (1998)
A basic quantum dot element: proposal of a HBT-dot cell for high-packing density memory circuits.
Conference or Workshop Item, Bibliographie

Klingbeil, Harald ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1997)
Analyse und Modellierung der Leiterverluste von Luftbrücken für MMIC-typische Komplanarleitungen.
MIOP '97: 9. Kongressmesse für Hochfrequenztechnik, Funkkommunikation und Elektromagnetische Verträglichkeit. Sindelfingen (22.04.1997-24.04.1997)
Conference or Workshop Item, Bibliographie

Grajal, J. ; Krozer, V. ; Schuessler, M. ; Brandt, M. ; Hartnagel, Hans L. (1997)
Application of semiconductor interface modelling to reliability characterisation.
Conference or Workshop Item, Bibliographie

Henkel, Achim ; Delage, Sylvain Laurent ; Forte-Poisson, Marie-Antoinette di ; Chartier, E. ; Blanck, Hervé ; Hartnagel, Hans L. (1997)
Collector-up InGaP/GaAs-double heterojunction bipolar transistors with high fmax.
In: Electronics Letters, 33 (7)
Article, Bibliographie

Niranjana, S. ; Goswami, S. N. N. ; Lal, K. ; Vogt, Alexander ; Hartnagel, Hans L.
ed.: Kumar, Vikram (1997)
Determination of crystalline perfection and lattice-mismatch between gallium antimonide epitaxial films and gallium arsenide substrates.
9. International Workshop on Physics of Semiconductor Devices. New Delhi, India (16.12.1997-20.12.1997)
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1997)
III-V-compounds for high temperature operation.
In: Materials science and engineering. B 46 (1997), S. 47-51
Article, Bibliographie

Dehé, Alfons ; Pavlidis, Dimitris ; Hong, K. S. ; Hartnagel, Hans L. (1997)
InGaAs/InP thermoelectric infrared sensor utilizing surface bulk micromachining technology.
In: IEEE Transactions on Electron Devices, 44 (7)
doi: 10.1109/16.595931
Article, Bibliographie

Hartnagel, Hans L. (1997)
New devices for millimeter-wave applications.
In: Annales des télécommunications. 52 (1997), No. 3-4
Article, Bibliographie

Vogt, Alexander ; Hartnagel, Hans L. ; Rodewald, M. ; Fuess, H. ; Ressel, P. ; Vogel, K. ; Würfl, J. (1997)
Pd-based Ohmic contacts to GaSb.
21st Workshop on Compound Semiconductor Devices and Integrated Circuits (WOCSDICE'97). Scheveningen, The Netherlands (25.05.1997-28.05.1997)
Conference or Workshop Item, Bibliographie

Klingbeil, Harald ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1997)
Rigorous numerical simulation and modeling of coplanar discontinuities.
International IEEE Workshop on Experimentally based FET Device Modelling and Related Nonlinear Circuit Design. Kassel (17.07.1997-18.07.1997)
Conference or Workshop Item, Bibliographie

Simon, Ansgar ; Hartnagel, Hans L. (1997)
Schottky diode developments for submillimeter wave applications.
In: IEEE-MTT/AP German newsletter, 1 (9)
Article, Bibliographie

Tiginyanu, I. ; Pavlidis, D. ; Cao, J. ; Eisenbach, A. ; Ichizli, Victoria M. ; Hartnagel, Hans L. ; Anedda, A. ; Corpino, R. (1997)
Time-resolved photoluminescence characterisation of GaN layers grown by metalorganic chemical vapor deposition.
Conference or Workshop Item, Bibliographie

Brandt, Michael ; Schüßler, Martin ; Lin, C. ; Simon, Ansgar ; Hartnagel, Hans L.
ed.: Kaldeich-Schürmann, Brigitte (1997)
Transmission line pulse based reliability investigations of THz Schottky diodes.
3. ESA Electronic Components Conference. Noordwijk, NL (22.04.1997-25.04.1997)
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1997)
Ultra-small quantum devices for memory and logic.
International Solid State Circuits Conference. San Francisco (1997)
Conference or Workshop Item, Bibliographie

Miao, Jianmin ; Tiginyanu, I. M. ; Hartnagel, Hans L. (1997)
The characteristics of high-resistance layers produced in n-GaAs using MeV-nitrogen implantation for three-dimensional structuring.
In: Applied Physics Letters, 70 (7)
doi: 10.1063/1.118222
Article, Bibliographie

Schuessler, M. ; Statzner, T. ; Granero, S. ; Hartnagel, Hans L. (1997)
A new self aligned technique for HBTs using electrolytical deposition of base metal.
5th European Gallium Arsenide and Related III-V Compounds Applications Symposium (GAAS 97). Bologna, Italy (03.09.1997-05.09.1997)
Conference or Workshop Item, Bibliographie

Gleeson, P. ; Pike, J. ; Maaskant, P. P. ; Kelly, W. M. ; Simon, A. ; Lin, C. I. ; Hartnagel, Hans L. (1997)
GaAs Schottky diodes for THz applications.
22. International Conference on Infrared and MM Waves. Wintergreen (07.09.1997-11.09.1997)
Conference or Workshop Item, Bibliographie

Behner, Ulrich ; Haug, R. ; Schütz, R. ; Hartnagel, Hans L.
ed.: Hornung, T. (1997)
Untersuchung von anisotrop elektrisch leitfähigen Klebstoffen mit 1/f-Rauschmessungen.
International Society for Hybrid Microelectronics: German ISHM Conference. München (13.10.1997-13.10.1997)
Conference or Workshop Item, Bibliographie

Krozer, Viktor ; Ruppert, Markus ; Schüßler, Martin ; Fricke, Klaus ; Lee, Woo-Yong ; Hartnagel, Hans L. (1996)
Calculation of the power capabilities of HBT amplifiers based on a new physical HBT model.
In: International Journal of Microwave and Millimeter-Wave Computer-Aided Engineering, 6 (4)
doi: 10.1002/(SICI)1522-6301(199607)6:4<270::AID-MMCE6>3.0.CO;2-R
Article, Bibliographie

Hartnagel, Hans L. (1996)
Are new device and material concepts needed in the future?
Conference or Workshop Item, Bibliographie

Iida, Tsutomu ; Makita, Yunosuke ; Shima, Takayuki ; Kimura, Shinji ; Horn, Joachim ; Hartnagel, Hans L. ; Uekusa, Shin‐ichiro (1996)
C+-energy-dependent residual ion damage in GaAs: C grown by the low-energy ion-beam doping method.
In: Journal of Applied Physics, 80 (7)
doi: 10.1063/1.363306
Article, Bibliographie

Brandt, Michael ; Krozer, Viktor ; Schüßler, M. ; Bock, K.-H. ; Hartnagel, Hans L. (1996)
Characterisation of reliability of compound semiconductor devices using electrical pulses.
In: Microelectronics reliability, 36 (11/12)
doi: 10.1016/0026-2714(96)00222-3
Article, Bibliographie

Vogt, Alexander ; Hartnagel, Hans L. ; Miehe, Gerhard ; Fuess, H. ; Schmitz, J. (1996)
Electrical and microstructure analysis of ohmic contacts to p- and n-type GaSb, grown by molecular beam epitaxy.
In: Journal of Vacuum Science and Technology B, 14
doi: 10.1116/1.588790
Article, Bibliographie

Schuessler, M. ; Statzner, ; Lin, ; Krozer, ; Horn, ; Hartnagel, Hans L. (1996)
Electrochemical deposition of Pd, Ti, and Ge for applications in GaAs technology.
In: Journal of the Electrochemical Society. 143 (1996), No. 4, S. 73-75
Article, Bibliographie

Dumka, Deep C. ; Riemenschneider, Rolf ; Miao, Jianmin ; Hartnagel, Hans L. ; Singh, Babu R. (1996)
Electrochemically fabricated high-barrier Schottky contacts on n-InP and their application for metal-semiconductor-metal photodetectors.
In: Journal of The Electrochemical Society, 143 (6)
doi: 10.1149/1.1836929
Article, Bibliographie

Klingbeil, Harald ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1996)
Finite-difference analysis structures consisting of roundly and rectangular shaped domains.
In: IEEE Microwave and Guided Wave Letters, 6 (8)
doi: 10.1109/75.508558
Article, Bibliographie

Dehé, Alfons ; Klingbeil, Harald ; Krozer, Viktor ; Fricke, Klaus ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1996)
GaAs integrated thermoelectric microwave power sensor.
20th Workshop on Compound Semiconductor Devices and Integrated Circuits. Vilnius, Lithuania (19.05.1996-22.05.1996)
Conference or Workshop Item, Bibliographie

Dehé, Alfons ; Krozer, Viktor ; Chen, B. ; Hartnagel, Hans L. (1996)
High-sensitivity microwave power sensor for GaAs-MMIC implementation.
In: Electronic letters, 32 (23)
doi: 10.1049/el:19961416
Article, Bibliographie

Hartnagel, Hans L. (1996)
III-V compounds for high-temperature operations.
E-MRS 1996 Spring Meeting. Strasbourg, France (03.06.1996-07.06.1996)
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1996)
Microwave opportunities for city communications and for motor-car traffic handling.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1996)
Nanometric structures in future quantum electronics.
In: Review of radio science 1993-1996. Hrsg.: W.R. Stone. S. 295-303
Article, Bibliographie

Dehé, Alfons ; Hartnagel, Hans L. ; Pavlidis, Dimitris ; Hong, Kyushik ; Kuphal, E. (1996)
Properties of InGaAs/InP thermoelectric and surface bulk micromachined infrared sensors.
In: Applied physics letters. 69 (1996), S. 3039-3041, 69
doi: 10.1063/1.116832
Article, Bibliographie

Schuessler, M. ; Krozer, V. ; Bock, K. H. ; Brandt, M. ; Vecchi, L. ; Losi, R. ; Hartnagel, Hans L. (1996)
Pulsed stress reliability investigations of Schottky diodes and HBTs.
In: Microelectronics and reliability, 36 (11-12)
doi: 10.1016/0026-2714(96)00226-0
Article, Bibliographie

Tiginyanu, I. ; Miao, ; Hartnagel, Hans L. ; Rück, ; Tinschert, ; Ursaki, ; Ichizli, Victoria M. (1996)
Raman and electrical characterisation of n-InP implanted by 630-keV nitrogen.
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1996)
(Rez.) Ploog, K.H.: III-V quantum system research.
In: Electronics & communication: engineering journal. 8 (1996), S. 277
Article, Bibliographie

Horn, Joachim ; Pavlidis, Dimitris ; Park, Yongjo ; Hartnagel, Hans L. (1996)
Scanning tunneling microscopy characterization of MOCVD grown GaN.
In: Materials Science and Engineering: B, 44 (1/3)
doi: 10.1016/S0921-5107(96)01791-6
Article, Bibliographie

Riipulk, Jevgeni ; Hinrikus, Hiie ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1996)
Simulation of breast tissues temperature measurement using Dicke radiometer by FDTD method.
In: Medical & biological engineering & computing, 34 (Suppl. 1, Part 2)
Article, Bibliographie

Riipulk, Jevgeni ; Hinrikus, Hiie ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1996)
Simulation of microwave radiometric temperature measurement inside biological tissues using FDTD method.
Third International Congress of the European Bio-Electromagnetics Association (EBEA Nancy'96). Nancy, France (29.02.1996-03.03.1996)
Conference or Workshop Item, Bibliographie

Tiginyanu, I. ; Ichizli, Victoria M. ; Hartnagel, Hans L. (1996)
Surface vibrational modes in nanoporous III-V compounds.
Conference or Workshop Item, Bibliographie

Steinhagen, Frank ; Hartnagel, Hans L. ; Burkhard, H. (1996)
Up to 20GHz high-frequency small-signal AM characterisation of laser diodes.
COST 240 Workshop on Characterization Techniques for Active and Passive Photonics Components. Budapest, Hungary (25.03.1996-25.03.1996)
Conference or Workshop Item, Bibliographie

Brandt, Michael ; Schüßler, M. ; Hartnagel, Hans L. (1996)
Characterisation of the reliability of planar Schottky diodes for millimetre and submillimetre wave applications.
European Space Research and Technology Centre: ESA-ESTEC. Noordwijk, NL (14.11.1996-15.11.1996)
Conference or Workshop Item, Bibliographie

Vogt, Alexander ; Brandt, M. ; Pena, D. ; Aller, Ingo ; Hartnagel, Hans L. (1996)
Wachstum und Zuverlässigkeit von resonanten Tunneldioden.
Molecular Beam Epitaxy Workshop. Frankfurt/Oder (1996)
Conference or Workshop Item, Bibliographie

Schultheis, Rüdiger ; Hartnagel, Hans L. (1995)
3D-finite difference analysis of planar transmission lines as beam electrodes in particle storage rings.
MIOP '95, 8. Kongreßmesse für Hochfrequenztechnik. Sindelfingen (30.05.1995-01.06.1995)
Conference or Workshop Item, Bibliographie

Schuessler, M. ; Krozer, ; Pfeiffer, ; Statzner, ; Lee, ; Hartnagel, Hans L. (1995)
AlGaAs/GaAs and GaInP/GaAs HBT for high temperature microwave operation.
Conference or Workshop Item, Bibliographie

Klingbeil, Harald ; Beilenhoff, Klaus ; Hartnagel, Hans L. (1995)
Analyse und Modellierung des rechtwinkligen Koplanarleitungs-Winkels.
MIOP '95, 8. Kongreßmesse für Hochfrequenztechnik. Sindelfingen (30.05.1995-01.06.1995)
Conference or Workshop Item, Bibliographie

Riemenschneider, Rolf ; Gottwald, P. ; Hartnagel, Hans L.
ed.: Bareikis, V. (1995)
Characterisation of SiO2 deposition by low-temperature plasma and photo CVD using low-frequency noise measurements.
13th International Conference on Noise in Physical Systems and 1/f Fluctuations (ICNF'95). Palanga, Lithuania (29.05.1995-03.06.1995)
Conference or Workshop Item, Bibliographie

Chattopadhyay, S. N. ; Aller, I. ; Hartnagel, Hans L. (1995)
Detailed transport modelling of experimental behaviour of lightly plasma damaged epitaxial InP.
In: International journal of electronics, 79 (5)
doi: 10.1080/00207219508926293
Article, Bibliographie

Hartnagel, Hans L. (1995)
Engineering at German universities.
In: Engineering science and education journal. 4 (1995), Nr. 1, S. 43-47
Article, Bibliographie

Miao, Jianmin ; Hartnagel, Hans L. ; Weiss, B. L. ; Wilson, R. J. (1995)
Fabrication of free-standing membranes in n-GaAs using MeV nitrogen implantation for sensors.
Fall meeting of Materials Research Society. Boston, Mass. (27.11.1995-01.12.1995)
Conference or Workshop Item, Bibliographie

Dehé, Alfons ; Hartnagel, Hans L. (1995)
Free-standing Al/sub 0.30/Ga/sub 0.70/As thermopile infrared sensor.
53rd Annual Device Research Conference Digest. Charlottesville, VA, USA (19.06.1995-21.06.1995)
doi: 10.1109/DRC.1995.496295
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1995)
Heterostructure transistors for MMIC applications: HEMTs and HBTs.
Conference or Workshop Item, Bibliographie

Krozer, Viktor ; Würfl, J. ; Fricke, K. ; Schüßler, M. ; Lee, W. Y. ; Hartnagel, Hans L. (1995)
High temperature electronics with III-V compound semiconductors.
In: HITEN news, (9)
Article, Bibliographie

Krozer, Viktor ; Würfl, J. ; Fricke, K. ; Schüßler, M. ; Lee, W. Y. ; Hartnagel, Hans L. (1995)
High temperature microwave modeling and circuit design with MESFET's and HBT's.
URSI International Symposium on Signals, Systems, and Electronics (ISSSE '95). San Francisco, USA (25.10.1995-27.10.1995)
Conference or Workshop Item, Bibliographie

Hartnagel, Hans L. (1995)
III-V semiconductor properties for high temperature electronics.
In: Materials Science and Engineering: B, 29 (1-3)
doi: 10.1016/0921-5107(94)04028-3
Article, Bibliographie

Dehé, Alfons ; Fricke, K. ; Hartnagel, Hans L. (1995)
Infrared thermopile sensor based on AlGaAs/GaAs micromachining.
In: Sensors and Actuators A : Physical, 47 (1/3)
doi: 10.1016/0924-4247(94)00936-C
Article, Bibliographie

Hartnagel, Hans L. (1995)
Temperature independent HBT oscillator design.
Conference or Workshop Item, Bibliographie

Hjort, Klas ; Schweeger, Giorgio ; Dehé, Alfons ; Fricke, Klaus ; Hartnagel, Hans L. (1995)
Thickness-field excited thickness-shear resonators in (110) GaAs.
In: Applied Physics Letters, 66 (3)
doi: 10.1063/1.113533
Article, Bibliographie

Dehé, Alfons ; Fricke, K. ; Mutamba, K. ; Hartnagel, Hans L. (1995)
A piezoresistive GaAs pressure sensor with GaAs/AlGaAs membrane technology.
In: Journal of Micromechanics and Microengineering, 5
doi: 10.1088/0960-1317/5/2/021
Article, Bibliographie

Miao, Jianmin ; Hartnagel, Hans L. ; Rück, D. ; Fricke, K. (1995)
The use of ion implantation for micromachining of GaAs for sensor applications.
In: Sensors and Actuators A : Physical, 46 (1/3)
doi: 10.1016/0924-4247(94)00855-C
Article, Bibliographie

Miao, Jianmin ; Rück, D. M. ; Tinschert, K. ; Hartnagel, Hans L. (1995)
Herstellung der mikromechanischen Strukturen auf GaAs durch Ionenimplantation für Sensoranwendungen.
Industrie und Forschung: Seminar der Gesellschaft für Schwerionenforschung. Darmstadt (1995)
Conference or Workshop Item, Bibliographie

Dumka, D. C. ; Riemenschneider, Rolf ; Hartnagel, Hans L. (1995)
High-barrier Schottky contacts on N-InP using damage-free electrochemical metallization.
19th Workshop on Compound Semiconductor Devices and Integrated Circuits: WOCSDICE. Stockholm (21.05.1995-24.05.1995)
Conference or Workshop Item, Bibliographie

This list was generated on Tue Nov 5 01:48:30 2024 CET.