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Number of items: 156.

Sirkeli, V. P. and Yilmazoglu, O. and Küppers, F. and Hartnagel, H. L. :
2.08 THz and 4.96 THz Room-Temperature Quantum Cascade Lasers Based on Non-Polar M-Plane ZnMgO/ZnO.
In: 2018 43rd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
[Conference or Workshop Item] , (2018)

Yilmazoglu, O. and Al-Daffaie, S. and Küppers, F. and Hartnagel, H. L. :
New photocathodes for THz vacuum microelectronic devices.
In: Energy, Materials, Nanotechnology (EMN) Meeting on Vacuum Electronics, November 2016, Las Vegas, NV, USA.
[Conference or Workshop Item] , (2016)

Sirkeli, V. P. and Yilmazoglu, O. and Al-Daffaie, S. and Oprea, I. and Ong, D. S. and Kueppers, F. and Hartnagel, H. L. :
Effect of Si-Doping of the GaN Barrier on the Internal Quantum Efficiency of InGaN/GaN Light-Emitting Diodes.
In: 8th International Conference on Materials Science and Condensed Matter Physics / MSCMP-2016, September 2016, Chisinau, Moldova.
[Conference or Workshop Item] , (2016)

Yilmazoglu, O. and Al-Daffaie, S. and Küppers, F. and Hartnagel, H. L. :
New photocathodes for THz vacuum microelectronic devices.
[Online-Edition: http://www.emnmeeting.org/VE/]
In: Energy, Materials, Nanotechnology (EMN) Meeting on Vacuum Electronics, Las Vegas, NV USA.
[Conference or Workshop Item] , (2015)

Sirkeli, V. P. and Yilmazoglu, O. and Küppers, F. and Hartnagel, H. L. :
Enhanced efficiency of p-GaN/n-ZnO light-emitting diodes by using NiO and ZnSe interlayers.
[Online-Edition: http://www.icnbme.sibm.md/home.html]
In: 3rd International Conference on Nanotechnologies and Biomedical Engineering ICNBME, Chisinau, Republic of Moldova.
[Conference or Workshop Item] , (2015)

Hartnagel, H. L.
Sontea, Victor and Tiginyanu, Ion (eds.) :

Plasmonic Effects for Enhanced Optical Mixing in View of THz Signal Generation.
[Online-Edition: http://dx.doi.org/10.1007/978-981-287-736-9_46]
In: 3rd International Conference on Nanotechnologies and Biomedical Engineering: ICNBME-2015, Chisinau, Republic of Moldova. 3rd International Conference on Nanotechnologies and Biomedical Engineering: ICNBME-2015, September 23-26, 2015, Chisinau, Republic of Moldova Springer Singapore
[Conference or Workshop Item] , (2015)

Yilmazoglu, O. and Al-Daffaie, S. and Küppers, F. and Hartnagel, H. L. and Neo, Y. and Mimura, H. :
Ultrafast photocathodes based on n-doped graphene emitters on compound semiconductor photoswitches.
[Online-Edition: http://dx.doi.org/10.1109/IVNC.2015.7225573]
In: 28th International Vacuum Nanoelectronics Conference (IVNC).
[Conference or Workshop Item] , (2015)

Hartnagel, H. L. and Al-Daffaie, S. and Yilmazoglu, O. :
Plasmonics and Graphene for THz Generation by Optical Mixing.
[Online-Edition: https://www.researchgate.net/publication/280223417_Plasmonic...]
In: The 4th Russia-Japan-USA Symposium on Fundamental & Applied Problems of Terahertz Devices & Technologies, At IMT, ISSP, Chernogolovka, Russia.
[Conference or Workshop Item] , (2015)

Al-Daffaie, S. and Yilmazoglu, O. and Küppers, F. and Hartnagel, H. L. :
1-D and 2-D Nanocontacts for Reliable and Efficient Terahertz Photomixers.
[Online-Edition: http://dx.doi.org/10.1109/TTHZ.2015.2399772]
In: IEEE Transactions on Terahertz Science and Technology, 5 (3) pp. 398-405. ISSN 2156-342X
[Article] , (2015)

Hartnagel, H. L. and Al-Daffaie, S. and Yilmazoglu, O. :
Plasmonics in semiconductors and in Ag submicron wires and graphene.
[Online-Edition: http://dx.doi.org/10.3952/physics.v55i4.3225]
In: Lithuanian Journal of Physics, 55 (4) pp. 287-291.
[Article] , (2015)

Hartnagel, H. L. and Al-Daffaie, S. and Yilmazoglu, O. :
Plasmonics in semiconductors and in Ag submicron wires and graphene.
[Online-Edition: http://dx.doi.org/10.3952/physics.v55i4.3225]
In: Lithuanian Journal of Physics, 55 (4)
[Article] , (2015)

Yilmazoglu, O. and Al-Daffaie, S. and Küppers, F. and Hartnagel, H. L. and Neo, Y. and Mimura, H. :
Photocathodes based on graphene nanoplatelet emitters on semi-insulating GaAs photoswitch.
In: Vacuum Nanoelectronics Conference (IVNC), 2014 27th International.
[Conference or Workshop Item] , (2014)

Halbritter, H. and Sydlo, C. and Koegel, B. and Riemenschneider, F. and Hartnagel, H. L. and Meissner, Peter :
Linewidth and chirp of MEMS-VCSELs.
In: IEEE Photonics Technology Letters, 18 pp. 2180-2182.
[Article] , (2006)

Handel, P. H. and Tournier, A. G. and Hartnagel, H. L. and Mishra, U. K. and York, R. :
1/f Noise in GaN/AlGaN HFET Based Amplifiers.
In: Proceedings WOCSDICE : Workshop on Compound Semiconductor Devices and Integrated Circuits in Europe <29, 2005, Cardiff, UK>, S. 101-103 .
[Conference or Workshop Item] , (2005)

Sydlo, Cezary and Mendis, R. and Sigmund, J. and Feiginov, Michael N. and Hartnagel, H. L. and Meissner, P. :
Binary optical mixing for broadband THz communication.
In: Proceedings 2005 IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics : Hilton Hawaiian Village, Honolulu, Hawaii, April 3 - 7, 2005. - Piscataway, NJ : IEEE Operations Center, 2005 ISBN: 0-7803-9068-7 . IEEE Operations Center , Piscataway, NJ
[Conference or Workshop Item] , (2005)

Vicente, C. and Mattes, M. and Wolk, D. and Hartnagel, H. L. and Mosig, J. R. and Raboso, D. :
FEST3D : a simulation tool for corona prediction.
In: Proceedings of the International Workshop on Multipactor, Corona and Passive Intermodulation in Space RF Hardware (MULCOPIM, 5.2005), ESTEC, Noordwijk, The Netherlande, 12-14. September 2005, S. 227-233 .
[Conference or Workshop Item] , (2005)

Vicente, C. and Mattes, M. and Wolk, D. and Hartnagel, H. L. :
FEST3D : a simulation tool for multipactor prediction.
In: Proceedings of the International Workshop on Multipactor, Corona and Passive Intermodulation in Space RF Hardware (MULCOPIM 2005), ESTEC, Noordwijk, The Netherlande, 12-14. September 2005, pp 11-17 .
[Conference or Workshop Item] , (2005)

Litovchenko, V. and Evtukh, A. and Yilmazoglu, O. and Mutamba, K. and Hartnagel, H. L. and Pavlidis, D. :
Gunn effect in field-emission phenomena.
In: Journal of Applied Physics, 97 044911-1.
[Article] , (2005)

Vicente, C. and Wolk, D. and Hartnagel, H. L. and Raboso, D. :
An Investigation on Passive Intermodulation Generation at Waveguide Junctions.
In: Proceedings of the International Workshop on Multipactor, Corona and Passive Intermodulation in Space RF Hardware (MULCOPIM 5. 2005), ESTEC, Noordwijk, The Netherlande, 12-14. September 2005, S. 207-214 .
[Conference or Workshop Item] , (2005)

Dragoman, M. and Hartnagel, H. L. and Tuovinen, J. and Plana, R. :
Microwave applications of carbon nanotubes.
In: Frequenz, 59 pp. 251-263.
[Article] , (2005)

Sigmund, J. and Sydlo, C. and Hartnagel, H. L. and Teissmann, R. and Benker, N. and Fuess, Hartmut and Rutz, F. and Koch, M. :
Non-stoichiometric growth and precipitation formation in LTG-GaAsSb for THzapplications.
In: Papers from the 23rd North American Conference on Molecular Beam Epitaxy : [held at the University of California at Santa Barbara from 11 - 14 September 2005] / [Gerry Sullivan, proceedings ed.]. - New York, NY : American Inst. of Physics, 2006; S. 153 . American Inst. of Physics , New York, NY
[Conference or Workshop Item] , (2005)

Vicente, C. and Hartnagel, H. L. :
Passive-intermodulation analysis between rough rectangular waveguide flanges.
In: IEEE Transactions on Microwave Theory and Techniques, 53 pp. 2515-2525.
[Article] , (2005)

Sydlo, C. and Sigmund, J. and Hartnagel, H. L. and Mendis, R. and Feiginov, Michael N. and Meissner, P. :
Planar Terahertz antenna optimisation.
In: Proceeding 2005 IEEE/ACES International Conference on Wireless Communications and Applied Computational Electromagnetics : Hilton Hawaiian Village, Honolulu, Hawaii, April 3 - 7, 2005. - Piscataway, NJ : IEEE Operations Center, 2005 ISBN 0-7803-9068-7 . IEEE Operations Center , Piscataway, NJ
[Conference or Workshop Item] , (2005)

Hartnagel, H. L. :
Proposal for fine-tuning of current across MEMS device by quantum- electronic structure.
In: Frequenz, 59 pp. 206-207.
[Article] , (2005)

Mendis, R. and Sydlo, C. and Sigmund, J. and Feiginov, Michael N. and Meissner, P. and Hartnagel, H. L. :
Spectral characterization of broadband THz antennas by photoconductive mixing : towards optimal antenna design.
In: IEEE Antennas and Wireless Propagation Letters, 4 pp. 85-88.
[Article] , (2005)

Hartnagel, H. L. :
The introduction of quantum electronic structures for MEMS devices.
In: Lithunian Journal of Physics, 45
[Article] , (2005)

Wolk, D. and Vicente, C. and Hartnagel, H. L. and Mattes, M. and Mosig, J. R. and Raboso, D. :
An investigation on the effect of fringing fields on multipactor breakdown.
In: Proceedings of the International Workshop on Multipactor, Corona and Passive Intermodulation in Space RF Hardware (MULCOPIM 5. 2005), ESTEC, Noordwijk, The Netherlande, 12-14.September 2005, S 93-99 [129] C. Vicente, M. Mattes, D. Wolk, H.L. Hartnagel, J. .
[Conference or Workshop Item] , (2005)

Chowdhury, D. Roy and Saglam, M. and Mutamba, K. and Hartnagel, H. L. :
A novel way to reduce conduction current in Al0:7Ga0:3As/GaAs heterostructure Barier Varactors.
In: Proceedings of the XIII International Workshop on Physics of Semiconductor Devices (IWPSD-2005) : December 13 - 17, 2005 / National Physical Laboratory, New Delhi. Ed.: Vikram Kumar ... Vol. 2, S. 817-821 ISBN: 81-7764947-7 .
[Conference or Workshop Item] , (2005)

Saglam, Mustafa and Bozzi, M. and Megej, A. and Rodriguez-Girones, M. and Perregrini, L. and Hartnagel, H. L. :
Characterization of heterostructure-barrier-varactors for frequency multiplication.
In: International journal of infrared and millimeter waves, 22
[Article] , (2001)

Ichizli, Victoria M. and Droba, M. and Mutamba, K. and Sigurdardottir, A. and Hartnagel, H. L. :
Comparative investigation of interface effect on transmission function of electrons and holes in InAs/AlSb-based heterostructures.
In: PCSI-28: International Conference on Physics and Chemistry of Semiconductor Interfaces <28, 2001, Orlando, Florida>; Proceedings .
[Conference or Workshop Item] , (2001)

Megej, Alexander and Beilenhoff, K. and Hartnagel, H. L. :
Conditions for broadband MMIC voltage-controlled oscillators based on theory and experiments.
In: IEEE-MTT-S International Microwave Sympsoium Digest, 3 pp. 1419-1422.
[Article] , (2001)

Stevens-Kalceff, M. A. and Tiginyanu, I. M. and Langa, S. and Föll, H. and Hartnagel, H. L. :
Correlation between morphology and cathodoluminescence in porous GaP.
In: Journal of applied physics, 89
[Article] , (2001)

Sydlo, Cezary and Mottet, B. and Ganis, H. and Hartnagel, H. L. and Krozer, V. and Delage, S. L. and Cassette, S. and Chartier, E. and Floriot, D. :
Defect detection and modelling using pulsed electrical stress for reliability investigations of InGaP HBT.
In: ESREF 2001: European Symposium on Reliability of Electron Devices <12, 2001, Arcachon>: Conference proceedings. Vol. 1, S. 1567-1571. - Oxford : Pergamon, 2001 . Pergamon , Oxford
[Conference or Workshop Item] , (2001)

Yilmazoglu, Oktay and Mimura, H. and Mutamba, K. and Hartnagel, H. L. and Shimawaki, H. and Yokoo, K. :
Emission behaviour of micromachined vertical field emitter with cantilever structure.
In: European Field Emission Workshop <3, 2001, Alicante>: Proceedings .
[Conference or Workshop Item] , (2001)

Ichizli, Victoria M. and Hartnagel, H. L. and Mimura, H. and Shimawaki, H. and Yokoo, K. :
Field emission from porous (100) GaP with modified morphology.
In: Applied physics letters, 79
[Article] , (2001)

Saura, A. and Monecke, J. and Irmer, G. and Tiginyanu, I. M. and Gärtner, G. and Hartnagel, H. L. :
Fröhlich modes in porous III-V semiconductors.
In: Journal of physics pp. 6687-6706.
[Article] , (2001)

Megej, Alexander and Beilenhoff, K. and Sydlo, C. and Hartnagel, H. L. :
Fully monolithically integrated wide-band RF-source.
In: EuMC 2001: European Microwave Conference <31, 2001, London>; Proceedings. Vol. 3, S. 125-128 .
[Conference or Workshop Item] , (2001)

Yilmazoglu, Oktay and Mimura, H. and Mutamba, K. and Hartnagel, H. L. and Okamura, K. and Shimawaki, H. and Yokoo, K. :
Generation of a bunched beam by field-emitter structures.
In: Displays and Vacuum Electronics <2001, Garmisch-Partenkirchen>: Proceedings. S. 263-267. - Berlin: VDE-Verl., 2001 . VDE-Verl. , Berlin
[Conference or Workshop Item] , (2001)

Yilmazoglu, Oktay and Mimura, H. and Mutamba, K. and Cojocari, O. and Hartnagel, H. L. and Okamura, K. and Shimawaki, H. and Yokoo, K. :
Generation of modulation beam with GaAs field-emitter structures.
In: IVEC 2001: International Vacuum Electronics Conference <2, 2001, Noordwijk>: Proceedings .
[Conference or Workshop Item] , (2001)

Yilmazoglu, Oktay and Brandt, M. and Sigmund, J. and Genc, E. and Hartnagel, H. L. :
Integrated InAs/GaSb 3D magnetic field sensors for "the intelligent tire".
In: Sensors and actuators, A 94 pp. 59-63.
[Article] , (2001)

Mutamba, Kabula and Beilenhoff, K. and Megej, A. and Woelk, C. and Hartnagel, H. L. :
Micromachined GaAs sensors for microwave and millimeter-wave power measurement.
In: mstnews S. 42-43.
[Article] , (2001)

Sigmund, Jochen and Saglam, M. and Vogt, Alexander and Hartnagel, H. L. and Buschmann, V. and Wieder, Thomas and Fuess, H. :
Microstructure analysis of ohmic contacts on MBE grown n-GaSb and investigation of submicron contacts.
In: Journal of crystal growth, 227-22 pp. 625-629.
[Article] , (2001)

Megej, Alexander and Hartnagel, H. L. :
Microwave source studies based on reflection-type oscillators and different HEMT-circuit configurations.
In: WOCSDICE 2001: Workshop on Compound Semiconductor Devices & Integrated Circuits <25, 2001, Cagliary>; Proceedings. S. 59-60 .
[Conference or Workshop Item] , (2001)

Gottwald, P. and Kräutle, H. and Szentpali, B. and Hartnagel, H. L. :
Results on passivation of InP by photo-CVD SiO2 and SiNx obtained by using the low-frequency noise measurement technique.
In: Fluctuation and noise letters, 1 S. L35-L43.
[Article] , (2001)

Ichizli, Victoria M. and Rodriguez-Girones, M. and Lin, Ch.-I. and Szeliga, P. and Hartnagel, H. L. :
The effect of glas plasma on the deposition quality of Schottky metals and interconnect metallisation for planar diodes structure for THz applications.
In: International Conference on THz Electronics <9, 2001, Charlottesville, Virginia>: Proceedings .
[Conference or Workshop Item] , (2001)

Schüßler, M. and Mottet, B. and Sydlo, C. and Krozer, V. and Hartnagel, H. L. and Jakoby, Rolf :
Model for the Decrease in HBT Collector Current under DC Stress based on Recombination Enhanced Defect Reactions.
In: 11th ESREF-Symposium. Dresden, Germany
[Conference or Workshop Item] , (2000)

Droba, Martin and Beilenhoff, K. and Hartnagel, H. L. and Ratzinger, U. :
180 degree bending systems for higher current heavy ion linacs.
In: EPAC 2000: European Particle Accelerator Conference <2000, Wien>: Proceedings. S. 1483-1485 .
[Conference or Workshop Item] , (2000)

Saglam, Mustafa and Bozzi, M. and Domoto, C. and Rodriguez-Girones, M. and Perregrini, L. and Hartnagel, H. L. :
Al07Ga03As/GaAs HBV for 255 GHz tripling operation.
In: Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe <24, 2000, Aegean Sea, Greece>: Proceedings .
[Conference or Workshop Item] , (2000)

Saglam, Mustafa and Bozzi, M. and Domoto, C. and Megej, A. and Rodriguez-Girones, M. and Perregrini, L. and Hartnagel, H. L. :
AlGaAs HBV performance in frequency tripling at 255 GHz.
In: GAAS 2000: Gallium Arsenide and other Semiconductor Application Symposium <2000, La Defense, Paris>: Proceedings .
[Conference or Workshop Item] , (2000)

Saglam, Mustafa and Bozzi, M. and Rodriguez-Girones, M. and Lin, C.-I. and Megej, A. and Perregrini, L. and Hartnagel, H. L. :
Characterization of heterostructure barrier varactors for 255 GHz tripling operation.
In: International Conference on Infrared and Millimeter Waves <25, 2000, Beijing, China>: Proceedings .
[Conference or Workshop Item] , (2000)

Tiginyanu, I. and Kravetsky, I. V. and Marowsky, G. and Monecke, J. and Hartnagel, H. L. :
Design of new nonlinear optical materials based on porous III-V compounds.
In: Physica statis solidi, b 221 S. 557-560.
[Article] , (2000)

Lal, K. and Hartnagel, H. L. and Goswami, N. and Thoma, P. :
Experimental evaluation of on-chip measurement of charge transfer by X-rays.
In: Electronics letters, 36
[Article] , (2000)

Megej, Alexander and Beilenhoff, K. and Hartnagel, H. L. :
Fully integrated PHEMT voltage controlled oscillator with very high tuning bandwidth.
In: Conference Proceedings: EuMC: European Microwave Week - [incorporating the] 30th European Microwave Conference 2000, GAAS 2000: Gallium Arsenide and other Semiconductor Application Symposium <2000, La Defense, Paris>. S. 428-431 .
[Conference or Workshop Item] , (2000)

Megej, Alexander and Beilenhoff, K. and Hartnagel, H. L. :
Fully monolithically integrated feedback voltage controlled oscillator.
In: IEEE Microwave and guided wave letters, 10
[Article] , (2000)

Yilmazoglu, Oktay and Hartnagel, H. L. and Mimura, H. and Okumura, K. and Shimawaki, H. and Yokoo, K. :
Gunn effect based modulationbeam generation with GaAs lateral field emitter structures.
In: European Field Emission Workshop <2, 2000, Segovia>: Proceedings .
[Conference or Workshop Item] , (2000)

Manca, J. and Croes, K. and DeCeunink, W. and DeSchepper, L. and Dieval, B. and Hartnagel, H. L. :
High temperature time dependent dielectric breakdown of power MOSFET's.
In: The circuit breaker
[Other] , (2000)

Mutamba, Kabula and Pfeiffer, J. and Beilenhoff, K. and Peerlings, J. and Megej, A. and Meissner, P. and Hartnagel, H. L. :
III-V compound MEMS solutions for sensors and optical communications.
In: Symposium on Microsystem Technology <2000, National Cheng Kung Univ., Taiwan>: Proceedings. S. 163-169 .
[Conference or Workshop Item] , (2000)

Miranda-Pantoja, J. M. and Lin, C.-I. and Brandt, M. and Rodriguez-Girones, M. and Hartnagel, H. L. and Sebastian, J. L. :
Influence of reactive ion etching on the microwave trap noise generated in Pt/n-GaAs Schottky diode interfaces.
In: IEEE Electron device letters, 21
[Article] , (2000)

Ichizli, Victoria M. and Mutamba, K. and Droba, M. and Sigurdardottir, A. and Hartnagel, H. L. :
Interface tuning of the InAs/AlSb heterostructure-based quantum wells.
In: Journal of vacuum science and technology, B 18 S. 2279-2283.
[Article] , (2000)

Sigmund, Jochen and Saglam, M. and Vogt, Alexander and Hartnagel, H. L. and Buschmann, V. and Wieder, Thomas and Fuess, H. :
Microstructure analysis of Ohmic contacts on MBE grown n-GaSb layers and investigation of submicron contacts.
In: MBE-XI: International Conference on Molecular Beam Epitaxy <11, 2000, Beijing, China>: Abstract Book.S. 275 .
[Conference or Workshop Item] , (2000)

Schüßler, Martin and Mottet, B. and Sydlo, C. and Krozer, V. and Hartnagel, H. L. and Jakoby, Rolf :
Model for the decrease in HBT collector current under DC stress based on recombination enhanced defect reactions.
In: ESREF 2000: European Symposium on Reliability of Electron Devices, Failure Physics and Analysis <11, 2000, Dresden>: Proceedings. S. 1733-1738. - Oxford: Pergamon, 2000 . Pergamon , Oxford
[Conference or Workshop Item] , (2000)

Miranda-Pantoja, J. M. and Lin, C.-I. and Shalaan, M. and Sebastian, J. L. and Munoz, S. and Hartnagel, H. L. :
Monte Carlo simulation of microwave noise temperature in cooled GaAs and InP.
In: IEEE Transactions on microwave theory and techniques, 48 S. 1275-1279.
[Article] , (2000)

Schwab, C. and Tiginyanu, I. M. and Sarua, A. and Irmer, G. and Monecke, J. and Sigmund, J. and Hartnagel, H. L. :
Nanoporous membranes and heterostructures based on III-V compounds.
In: NATO Advanced Research Workshop on Frontiers of Nano-Optoelectronic Systems: Molecular Scale Engineering and Processes <2000, Kiev>: Proceedings. - Dordrecht (u.a.): Kluwer Acad. Publ., 2000 . Kluwer Acad. Publ. , Dordrecht (u.a.)
[Conference or Workshop Item] , (2000)

Tiginyanu, I. and Langa, S. and Hjort, K. and Monecke, J. and Hartnagel, H. L. :
Nanotexturization of III-V compounds for THz-wave generation.
In: THz Conference 2000: 8th International Conference on Terahertz Electronics, 2000 Darmstadt Techn. Univ., Inst. für Hochfrequenztechnik. - Berlin (u.a.): VDE-Verl., 2000. Abstract Booklet, S. 275 . VDE-Verl. , Berlin (u.a.)
[Conference or Workshop Item] , (2000)

Tiginyanu, I. and Kravetsky, I. and Pavlidis, D. and Eisenbach, A. and Hildebrandt, R. and Marowsky, G. and Hartnagel, H. L. :
Nonlinear optical characterization of GaN layers grown by MOCVD on sapphire.
In: MRS Internet journal nitride semiconductor research. 5S1, W11.52 (2000)
[Article] , (2000)

Kravetsky, V. and Tiginyanu, I. M. and Hildebrandt, R. and Marowsky, G. and Pavlidis, D. and Eisenbach, A. and Hartnagel, H. L. :
Nonlinear optical response of GaN layers on sapphire: the impact of fundamental beam interference.
In: Applied physics letters, 76 S. 810-812.
[Article] , (2000)

Tiginyanu, I. and Schwab, C. and Sarua, A. and Irmer, G. and Monecke, J. and Sigmund, J. and Hartnagel, H. L. :
Optical characteristics of nanostructured III-V compounds.
In: NATO Advanced Research Workshop on Frontiers of Nano-Optoelectronic Systems: Molecular Scale Engineering and Processes <2000, Kiev>: Proceedings. - Dordrecht (u.a.): Kluwer Acad. Publ., 2000 . Kluwer Acad. Publ. , Dordrecht (u.a.)
[Conference or Workshop Item] , (2000)

Monecke, J. and Irmer, G. and Sarua, A. and Tiginyanu, I. M. and Gartner, G. and Hartnagel, H. L. :
Optische Phononen und elektrische Eigenschaften poröser GaP-Membranen.
In: Frühjahrstagung der Deutschen Physikalischen Gesellschaft <2000, Regensburg> = Verhandlungen der Deutschen Physikalischen Gesellschaft; 35,4 .
[Conference or Workshop Item] , (2000)

Sarua, A. and Gärtner, G. and Irmer, G. and Monecke, J. and Tiginyanu, I. M. and Hartnagel, H. L. :
Raman and IR-reflectance spectra of porous III-V semiconductor structures.
In: Physica status solidi, A 182 S. 207-211.
[Article] , (2000)

Sarua, A. and Irmer, G. and Monecke, J. and Tiginyanu, I. M. and Schwab, C. and Grob, J.-J. and Hartnagel, H. L. :
Raman spectroscopy of porous and bulk GaP subjected to MeV-ion implantation and annealing.
In: Journal of applied physics, 88 S. 7006-7012.
[Article] , (2000)

Ichizli, Victoria M. and Riemenschneider, R. and Hartnagel, H. L. :
Scanning tunneling spectroscopy characterisation of As+ implanted InP (100) single crystals.
In: Journal of vacuum science and technology, B 18
[Article] , (2000)

Tiginyanu, I. and Kravetsky, I. V. and Monecke, J. and Cordts, W. and Marowsky, G. and Hartnagel, H. L. :
Semiconductor sieves as nonlinear optical materials.
In: Applied physics letters, 77 S. 2415-2417.
[Article] , (2000)

Tiginyanu, I. and Kravetsky, I. V. and Marowsky, G. and Monecke, J. and Cordts, W. and Hartnagel, H. L. :
Semiconductor sieves as novel materials for nonlinear optical applications.
In: Materials Research Society: Fall Meeting <2000, Boston, Mass.>. Abstract Booklet; Report ES.13 .
[Conference or Workshop Item] , (2000)

Akar, I. and Mutamba, K. and Euterneck, C. and Aarab, H. and Coulibaly, S. and Brecht, S. and Hartnagel, H. L. :
Technology of integrated application specific GaAs flow sensors.
In: HETECH 2000: European Workshop Heterostructure Technology <10, 2000, Ulm>: Proceedings .
[Conference or Workshop Item] , (2000)

Sigmund, Jochen and Saglam, M. and Cojocari, O. and Tiginyanu, I. and Hartnagel, H. L. :
Untersuchungen von epitaktischem Überwachsen auf porösen GaP und n-GaAs Substraten.
In: Epitaxie von III/V-Halbleitern: 15. Workshop des DGKK-Arbeitskreises , 2000 Bad Dürkheim. Tagungsbd. .
[Conference or Workshop Item] , (2000)

Sydlo, Cezary and Mottet, B. and Schüßler, M. and Brandt, M. and Hartnagel, H. L. :
A method for HBT process control and defect detection using pulsed electrical stress.
In: ESREF 2000: European Symposium on Reliability of Electron Devices, Failure Physics and Analysis <11, 2000, Dresden>: Proceedings. S. 1449-1453. - Oxford: Pergamon, 2000 . Pergamon , Oxford
[Conference or Workshop Item] , (2000)

Bozzi, M. and Saglam, M. and Rodriguez-Girones, M. and Perregrini, L. and Hartnagel, H. L. :
A new evolutionary approach for the analysis and optimization of THz nonlinear circuits.
In: International Conference on Terahertz Electronics <8, 2000, Darmstadt>. - Berlin, Offenbach: VDE-Verl., 2000 . VDE-Verl. , Berlin, Offenbach
[Conference or Workshop Item] , (2000)

Sarua, A. and Tiginyanu, I. M. and Ursaki, V. V. and Irmer, G. and Monecke, K. and Hartnagel, H. L. :
Charge carrier distribution in free-standing porous GaP membranes studied by Raman spectroscopy.
In: Solid state communications, 112 pp. 581-585.
[Article] , (1999)

Hillenbrand, Joachim and Angert, N. and Hartnagel, H. L. and Neumann, R. :
Depolarization RADII of latent heavy-ion racks in poly(vinylidene fluoride).
In: Gesellschaft für Schwerionenforschung: GSI-Preprint , 99-07
[Other] , (1999)

Mier, A. and Pascual, J. P. and Beilenhoff, K. and Rheinfelder, C. and Luy, J. F. and Hartnagel, H. L. :
Design of a 38 GHz small signal amplifier for a coplanar Si/SiGe MMIC technology process.
In: Workshop on CAD and Verification of Millimeter-Wave and Submillimeter-Wave Circuits <1999, München>: Workshop Proceedings .
[Conference or Workshop Item] , (1999)

Berberich, Stephan and Godignon, P. and Millan, J. and Planson, D. and Hartnagel, H. L. and Senses, A. :
Electrical characterisation of MNOS devices on p-type 6H-SiC.
In: Diamond and related materials, 8 pp. 305-308.
[Article] , (1999)

Berberich, Stephan and Godignon, P. and Morvan, E. and Fonseca, L. and Millan, J. and Hartnagel, H. L. :
Electrical characterisation of Si3N4/SiO2 double layers on p-type 6H-SiC.
In: Workshop on Dielectrics <10, 1999, Barcelona>: Proceedings .
[Conference or Workshop Item] , (1999)

Facsko, S. and Dekorsy, T. and Trappe, C. and Kurz, H. and Vogt, Alexander and Hartnagel, H. L. :
Formation of ordered nanoscale semiconductor dots by ion sputtering.
In: American Association for Advance of Science, 285 pp. 1551-1553.
[Article] , (1999)

Micheel, Lutz and Sigurdardottir, A. and Hartnagel, H. L. and Mutamba, K. :
GaAs- and InP-based technologies of resonant tunneling devices.
In: International Workshop on Post-Binary Ultra-Large-Scale Integration systems <8, 1999, Freiburg im Breisgau>: Proceedings .
[Conference or Workshop Item] , (1999)

Lin, Chih-I. and Vogt, Alexander and Saglam, M. and Hartnagel, H. L. :
GaAs-Schottkydioden mit InAs-Elektrode.
In: MBE: Molecular Beam Epitaxy Workshop <1999, Würzburg>; Proceedings .
[Conference or Workshop Item] , (1999)

Lal, K. and Goswami, N. and Miao, J. and Hartnagel, H. L. :
High-resolution X-ray diffraction study of free-standing gallium arsenide coiled membrane force sensors produced by micromachining.
In: Indo-Russian Workshop on Micromechanical Systems = SPIE Proceedings. Vol. 3903 (1999) .
[Conference or Workshop Item] , (1999)

Matulionis, A. and Aninkevicius, V. and Liberis, J. and Matulioniene, I. and Berntgen, J. and Heime, K. and Hartnagel, H. L. :
Hot-electron energy relaxation , noise, and lattice strain in InGaAs quantum well channels.
In: Applied physics letters, 74
[Article] , (1999)

Beilenhoff, Klaus and Mutamba, K. and Simon, A. and Hartnagel, H. L. :
III-V Semiconductor structuring for mm and sub-mm waves.
In: Workshop on Micromachined Microwave and Millimeter-Wave Antennas and Circuits <1999, München>: Workshop Proceedings .
[Conference or Workshop Item] , (1999)

Wischmeyer, Frank and Niemann, E. and Hartnagel, H. L. :
Improvements of the SiC homoepitaxy process in a horizont cold-wall CVD reactor.
In: Journal of electronic materials, 28 pp. 173-177.
[Article] , (1999)

Pfeiffer, Joachim and Riemenschneider, R. and Mutamba, K. and Peerlings, J. and Afshar, B. E. and Baaser, Herbert and Grunert, D. and Meissner, P. and Hartnagel, H. L. :
Indium phosphide based bulked micromachining technology for micromechanically tunable WDM filter applications.
In: TRANSDUCERS'99 <1999, Sendai, Japan>: Proceedings. S. 380-383 .
[Conference or Workshop Item] , (1999)

Miranda-Pantoja, J. M. and Lin, C. I. and Shalaan, M. and Hartnagel, H. L. and Sebastian, J. L. :
Influence of the minimization of self-scattering events on the Monte Carlo simulation of carrier transport in III-V semiconductors.
In: Semiconductor science technology, 14 pp. 804-808.
[Article] , (1999)

Mutamba, Kabula and Sigurdardottir, A. and Vogt, Alexander and Pfeiffer, J. and Behner, U. and Di Carlo, A. and Hartnagel, H. L. :
Micromachined pressure sensors with AlGaAs/GaAs- and InAs/AlSb/GaSb-resonant tunneling diodes.
In: Annual Device Research Conference <57, 1999, Santa Barbara, Calif.>: Digest .
[Conference or Workshop Item] , (1999)

Hillenbrand, Joachim and Angert, N. and Hartnagel, H. L. and Neumann, R. :
NIM B beam interactions with materials and atoms.
In: Nuclear instruments and methods in physics research B, 151
[Article] , (1999)

Sigurdardottir, Anna and Megej, A. and Beilenhoff, K. and Hartnagel, H. L. :
Oscillator circuit-simulations using a novel, mathematically robust large-signal equivalent model for DBRTD.
In: EUMC'99: European Microwave Conference <29, 1999, München>; Proceedings. S. 270-273 .
[Conference or Workshop Item] , (1999)

Micheel, Lutz and Sigurdardottir, A. and Hartnagel, H. L. and Mutamba, K. :
Programmable HBT-Quantum dot structures for arithmetic MVL.
In: International Workshop on Post-Binary Ultra-Large-Scale Integration Systems <8, 1999, Freiburg im Breisgau>: Proceedings, .
[Conference or Workshop Item] , (1999)

Tiginyanu, I. and Ursaki, V. V. and Raptis, Y. S. and Stergiou, V. and Anatassakis, E. and Hartnagel, H. L. and Vogt, Alexander and Prevot, B. and Schwab, C. :
Raman modes in porous GaP under hydrostatic pressure.
In: Physica status solidi, 211 pp. 281-286.
[Article] , (1999)

Lal, K. and Goswami, N. and Miao, J. and Hartnagel, H. L. :
Structural characterization of free-standing gallium arsenide coiled membranes produced by micromachining.
In: Journal of applied crystallography, 32
[Article] , (1999)

Shaalan, Mohamed and Beilenhoff, K. and Bozzi, M. and Arcioni, P. and Conciauro, G. and Hartnagel, H. L. :
Technology and results of quasi-optical multipliers.
In: Workshop on CAD and Verification of Millimeter-Wave and Submillimeter-Wave Circuits <1999, München>: Workshop Proceedings .
[Conference or Workshop Item] , (1999)

Ichizli, Victoria M. and Vogt, Alexander and Sigurdardottir, A. and Tiginyanu, I. M. and Hartnagel, H. L. :
Tunneling spectroscopy of AlAs and InSb interfaces in InAs/AlSb heterostructures.
In: Semiconductor science and technology, 14 pp. 143-147.
[Article] , (1999)

Arcioni, P. and Bozzi, M. and Conciauro, G. and Perregrini, L. and Hartnagel, H. L. and Shalaan, M. :
An efficient algorithm for the analysis and optimization of quasi-optical frequency multipliers.
In: Atti della Fondazione Giorgio Ronchi (Firenze), 54 pp. 368-373.
[Article] , (1999)

Dehe, A. and Beilenhoff, K. and Fricke, A. and Klingbeil, Harald and Krozer, V. and Hartnagel, H. L. :
Microwave measurement.
In: J. G. Webster, editor, The Measurement, Instrumentation and Sensors Handbook, chapter 55.1-55.5. CRC Press, Boca Raton
[Article] , (1999)

Arcioni, P. and Bozzi, M. and Conciauro, G. and Hartnagel, H. L. and Perregrini, and Sacchi, and Shaalan, M. and Weinzierl, :
A 430.5 GHz Quasi-Optical HBV Frequency Trip 1 er.
In: International Symposium on Space Terahertz Technology <9, 1998, Pasadena, Calif.>: Proceedings. S. 493-500 .
[Conference or Workshop Item] , (1998)

Lin, Chih-I. and Simon, A. and Zhang, Jian and Piironen, P. V. and Möttönen, V. S. and Hartnagel, H. L. and Räisänen, A. V. :
Anti-parallel planar Schottky diodes for subharmonically pumped mixer.
In: International Conference on Infrared Millimeter Waves < 23, 1998, Colchester, UK>: Proceedings. S. 90-91 .
[Conference or Workshop Item] , (1998)

Arcioni, P. and Bozzi, M. and Conciauro, G. and Hartnagel, H. L. and Perregrini, L. and Shaalan, M. and Weinzierl, :
Design and optimisation of quasi-optical frequency multipliers.
In: International Conference on Infrared and Millimeter Waves <23, 1998, Colchester, UK>: Proceedings .
[Conference or Workshop Item] , (1998)

Arslan, Deniz and Hofmann, and Greiner, and Hartnagel, H. L. :
Fabrication and characterization of a GaAs field emission triode for low voltage operation at atmospheric pressure.
In: IVMC´98: International Vacuum Microelectronics Conference <11, 1998, Asheville, NC>: Proceedings .
[Conference or Workshop Item] , (1998)

Peerlings, Joachim and Riemenschneider, R. and Strassner, M. and Scheuer, V. and Naveen Kumar, V. and Mutamba, K. and Pfeiffer, J. and Herbst, S. and Hartnagel, H. L. :
In GaAs/InP Fabry-Pérot pin receiver for dense wavelength division multiplex systems.
In: ECOC´98: European Conference on Optical Communications <24, 1998, Madrid>: Proceedings .
[Conference or Workshop Item] , (1998)

Pfeiffer, Joachim and Riemenschneider, R. and Peerlings, J. and Dehé, A. and Mutamba, K. and Meissner, P. and Hartnagel, H. L. :
InP bulk micromachined tunable Bragg mirrors for optical filter applications in WDM systems.
In: WOCSDICE´98: Workshop on Compound Semiconductor Devices and Integrated Circuits <22,1998, Berlin>: Proceedings. S. 103-104 .
[Conference or Workshop Item] , (1998)

Sim, St. K. H. and Li, and Sigurdardottir, A. and Mutamba, and Hartnagel, H. L. :
Intersubband absorption in a typ-I interdiffused quantum-well infrared photodetector.
In: PHOTONICS´98: International Conference on Fiber Optics and Photonics <1998, Delhi>: Proceedings .
[Conference or Workshop Item] , (1998)

Sim, St. K. H. and Mutamba, and Sigurdardottir, A. and Hartnagel, H. L. :
Medium wavelength infrared detector with diffused Al x In 1-x Sb/InSb quantum-wells structure.
In: HKEDM´98: Hong Kong Electron. Dev. Meeting <1998, Hong Kong>: Proceedings .
[Conference or Workshop Item] , (1998)

Miranda-Pantoja, J. M. and Vogt, Alexander and Schüßler, M. and Shaalan, M. and Matulionis, A. and Sebastian, J. L. and Hartnagel, H. L. :
Microwave noise measurements on Al 0.3Ga 0.7As/GaAs channels grown by molecular beam epitaxy using As2 and As4.
In: Journal of semiconductor science and technology. 1998, H. 13, S. 833-836
[Article] , (1998)

Vogt, Alexander and Simon, A. and Weber, and Hartnagel, H. L. and Schikora, J. and Buschmann, V. and Fuess, H. :
Non-annealed Ohmic contacts to p-GaSb grown by molecular beam epitaxy.
In: EXMATEC´98: International Workshop on Expert Evaluation and Control Compound Semiconductor Materials and Technologies <1998, Cardiff>: Proceedings .
[Conference or Workshop Item] , (1998)

Arcioni, P. and Conciauro, G. and Perregrini, L. and Bozzi, M. and Shaalan, M. and Hartnagel, H. L. :
Numerical modeling of quasi-optical frequency multipliers.
In: International Conference on Millimeter and Submillimeter Waves and Applications <4, 1998, S.Diego, California USA>: Proceedings .
[Conference or Workshop Item] , (1998)

Vogt, Alexander and Simon, A. and Hartnagel, H. L. and Schikora, J. and Buschmann, V. and Rodewald, M. and Fuess, H. and Fascko, S. and Koerdt, C. and Kurz, H. :
Ohmic contact formation mechanics of the PdGeAu system on n-type GaSb grown by molecular beam epitaxy.
In: Journal of Applied Physics, 83 (12) pp. 7715-7719. ISSN 0021-8979
[Article] , (1998)

Vogt, Alexander and Simon, A. and Hartnagel, H. L. and Schikora, J. and Buschmann, V. and Rodewald, M. and Fuess, H. and Fascko, S. and Kurz, H. :
Ohmsche Kontakte des Systems Pd/Ge/Au auf n-GaSb.
In: Jahrestagung Deutsche Gesellschaft für Kristallographie <6, 1998, Karlsruhe>: Tagungsbd. .
[Conference or Workshop Item] , (1998)

Grajal, J. and Krozer, V. and Maldonado, F. and Gonzalez, E. and Lin, C. I. and Hartnagel, H. L. :
Tripler circuit design with Schottky varactors.
In: International Conference Terahertz Electronics <6,1998, Leeds, UK>: Proceedings. S. 153-156 .
[Conference or Workshop Item] , (1998)

Shaalan, Mohamed and Weinzierl, J. and Bozzi, M. and Hartnagel, H. L. :
An approach towards understanding an open-structure frequency-doubler.
In: IEEE Semiconductor Conference <1998, Lisboa>: Proceedings .
[Conference or Workshop Item] , (1998)

Mutamba, Kabula and Sigurdardottir, A. and Vogt, Alexander and Hartnagel, H. L. and Li, E. H. :
A comparative study of uniaxial pressure effects in intraband AlGaAs/GaAs and interband in As/AlSb/GaSb resonant tunneling diodes.
In: Applied physics letters. 72 (1998), H.13, S.1629-1631
[Article] , (1998)

Arslan, Deniz and Dehé, A. and Hartnagel, H. L. :
A new concept of lateral GaAs field emitter for sensor applications.
In: IVMC´98: International Vacuum Microelectronics Conference <11,1998, Asheville, NC>: Proceedings .
[Conference or Workshop Item] , (1998)

Arcioni, P. and Bozzi, M. and Conciauro, G. and Hartnagel, H. L. and Perregrini, L. and Shaalan, M. :
A novel CAD-tool for the optimization of quasi-optical frequency multipliers.
In: ESA Workshop on Millimeter Wave Technology and Applications <2, 1998, Espoo, Finland>: Proceedings. S. 479-484 .
[Conference or Workshop Item] , (1998)

DasGupta, A. and Arslan, D. and Sigurdardottir, A. and Hartnagel, H. L. :
A novel self-consistent simulator for current-density-voltage-characteristics of semiconductor field emitters.
In: Applied physicics letters. 72 (1998), H. 10, S. 1220-1222
[Article] , (1998)

Dehe, A. and Klingbeil, Harald and Weil, C. and Hartnagel, H. L. :
Membrane-Supported Coplanar Waveguides for MMIC and Sensor Application.
In: IEEE Microwave and Guided Wave Letters, 8 (5) pp. 185-187.
[Article] , (1998)

Lin, Chih-I. and Simon, A. and Rodriguez-Girones, M. and Hartnagel, H. L. and Zimmermann, P. and Zimmermann, R. :
Substrateless Schottky diodes for THz applications.
In: International Symposium on Space Terahertz Technology <8, 1997, Harvard Univ., Cambridge, Mass.>: Proceedings .
[Conference or Workshop Item] , (1997)

Shaalan, Mohamed and Bozzi, M. and Weinzierl, J. and Beilenhoff, K. and Conciauro, G. and Brand, H. and Hartnagel, H. L. :
A 300 GHz quasioptical Schottky frequency doubler.
In: Journal of infrared and millimeter waves. 18 (1997), No. 12
[Article] , (1997)

Vogt, Alexander and Brandt, and Sigurdardottir, A. and Schüßler, and Pena, and Simon, and Hartnagel, H. L. and Rodewald, and Roesner, :
Characterisation of degradation mechanisms in resonant tunneling diodes.
In: European Symposium of Electron Devices, Failure Physics and Analysis <8, 1997, Arcachon, France>: Proceedings. S. 1691-1694 .
[Conference or Workshop Item] , (1997)

Vogt, Alexander and Brandt, and Sigurdardottir, A. and Schüssler, and Pena, and Simon, and Hartnagel, H. L. and Rodewald, and Roesner, :
Characterisation of degradation mechanisms in resonant tunnelling diodes.
In: Microelectronics and reliability. 37 (1997), S. 1691-1694
[Article] , (1997)

Grajal, J. and Krozer, V. and Gonzalez, P. and Gismero, J. and Maldonado, F. and Lin, C. I. and Simon, A. and Hartnagel, H. L. :
Characterization of Schottky diode performance by numerical simulation coupled with harmonic balance.
In: European Microwave Conference <27, 1997, Jerusalem>: Proceedings .
[Conference or Workshop Item] , (1997)

Mutamba, Kabula and Sigurdardottir, A. and Hartnagel, H. L. :
Concept of nanometric high density charge coupled devices.
In: Workshop on Innovative Circuits and Systems for Nano Electronics <2, 1997, Delft, NL>: Proceedings .
[Conference or Workshop Item] , (1997)

Shaalan, Mohamed and Bozzi, M. and Arcioni, P. and Perregrini, L. and Weinzierl, J. and Conciauro, G. and Hartnagel, H. L. :
Design of planar antenna array for quasi-optical frequency tripler.
In: International Workshop on Terahertz Electronics <5, 1997, Grenoble, France>: Proceedings .
[Conference or Workshop Item] , (1997)

Shaalan, Mohamed and Bozzi, M. and Weinzierl, J. and Miranda, J. and Vogt, Alexander and Weber, J. and Hartnagel, H. L. and Conciauro, G. :
First design of a 430 GHz quasioptical HBV tripler.
In: International Workshop on Terahertz Electronics <5, 1997, Grenoble, France>: Proceedings .
[Conference or Workshop Item] , (1997)

Peerlings, Joachim and Dehé, A. and Tilsch, M. and Hebeler, C. and Langenhan, F. and Meißner, P. and Hartnagel, H. L. :
GaAs/AlAs micromachined tunable Fabry-Pérot filters for dense wavelength division multiplex systems.
In: International Conference on Integrated Optics and Optical Fibre Communications <11, 1997, Edinburgh, UK>: Proceedings .
[Conference or Workshop Item] , (1997)

Peerlings, Joachim and Dehé, A. and Vogt, Alexander and Tilsch, M. and Hebeler, C. and Langenhan, F. and Meißner, P. and Hartnagel, H. L. :
GaAs/AlAs micromachined tunable Fabry-Pérot filters with long resonant cavity.
In: Eurosensors <11, 1997, Warszawa, Poland>: Proceedings .
[Conference or Workshop Item] , (1997)

Sigurdardottir, Anna and Mutamba, K. and Vogt, Alexander and Hartnagel, H. L. :
Investigation on the tunneling effect in stressed InAs/AlSb/GaSb-resonant-tunneling diodes.
In: Workshop on Compound Semiconductor Devices and Integrated Circuits <21, 1997, Scheveningen, NL>: Proceedings .
[Conference or Workshop Item] , (1997)

Peerlings, Joachim and Dehé, A. and Vogt, Alexander and Tilsch, M. and Hebeler, C. and Langenhan, F. and Meißner, P. and Hartnagel, H. L. :
Long resonator micromachined tunable GaAs/AlAs Fabry-Pérot filter.
In: IEEE Photonics technology letters. 9 (1997), 9, S. 1235-1237
[Article] , (1997)

Tiginyanu, I. and Irmer, G. and Monecke, J. and Hartnagel, H. L. :
MicroRaman scattering study of surface-related phonon modes in porous GaP.
In: Physical review. B 55 (1997), S. 6739-6742
[Article] , (1997)

Mees, J. and Ekstrom, H. and Kollberg, E. L. and Eleftheriades, G. V. and Mosig, J. R. and Räisänen, A. V. and Piironen, P. and Hartnagel, H. L. and Simon, A. :
Open structure integrated Schottky receiver for space applications.
In: ESTEC Antenna Workshop on Millimeter Wave Antenna Technology and Antenna Measurements <20, 1997, Noordwijk, NL>: Proceedings .
[Conference or Workshop Item] , (1997)

Tiginyanu, I. and Irmer, G. and Monecke, J. and Vogt, Alexander and Hartnagel, H. L. :
Porosity-induced modification of the phonon spectrum of n-GaAs.
In: Semiconductor science technology. 12 (1997), S. 491-493
[Article] , (1997)

Lin, Chih-I. and Krozer, V. and Grajal, and Simon, A. and Hartnagel, H. L. :
Schottky varactor diode optimation for frequency multipliers.
In: International Workshop on Terahertz Electronics <5, 1997, Grenoble>: Proceedings .
[Conference or Workshop Item] , (1997)

Mutamba, Kabula and Sigurdardottir, A. and Vogt, Alexander and Hartnagel, H. L. :
Stress effects in AlGaAs/GaAs and InAs/AlSb/GaSb RTDs for sensing applications.
In: Phantoms Strategic Domain Meeting on Physics and Technology of Mesoscopic Systems <1997, Aachen, Germany>: Abstracts .
[Conference or Workshop Item] , (1997)

Shaalan, Mohamed and Bozzi, M. and Beilenhoff, K. and Conciauro, G. and Hartnagel, H. L. and Weinzierl, J. and Rehm, G. and Steup, D. and Brand, H. :
An antenna array for quasi-optical frequency multiplier applications.
In: ESTEC Antenna Workshop on Millimetre Wave Antenna Technology and Antenna Measurements <20, 1997, Noordwijk, NL>: Proceedings .
[Conference or Workshop Item] , (1997)

Lin, Chih-I. and Simon, A. and Hartnagel, H. L. :
Fabrication of substrateless Whiskercontacted Schottky diodes for THz applications.
In: International Workshop on Terahertz Electronics <4, 1996, Erlangen>: Proceedings .
[Conference or Workshop Item] , (1996)

Aller, Ingo and Schweeger, and Lang, and Hartnagel, H. L. and Dolt, and Hohenberg, Günter :
GaAs piezotransistor for dynamic pressure measurements at high temperatures.
In: Applied physics letters. 69 (1996), S. 403-405
[Article] , (1996)

Micheel, Lutz and Hartnagel, H. L. :
Interband RTDs with nanoelectronic HBT-LED structures for multiple-valued computation.
In: IEEE Multivalued Conference <1996, Santiago die Compostela>: Proceedings .
[Conference or Workshop Item] , (1996)

Beilenhoff, Klaus and Klingbeil, K. and Hartnagel, H. L. :
Parasitic effects of CPW discontinuities for MMIC applications.
In: European Microwave Conference <26, 1996, Praha>: Proceedings .
[Conference or Workshop Item] , (1996)

Mutamba, Kabula and Flath, and Sigurdardottir, A. and Vogt, Alexander and Hartnagel, H. L. :
Pressure effects in AlGaAs/GaAs resonant tunnelling diodes for applications in semiconductor sensors.
In: Lithunian journal of physics. 36 (1996), No. 6, S. 563-565
[Article] , (1996)

Mutamba, Kabula and Flath, and Vogt, Alexander and Sigurdardottir, A. and Dehé, A. and Hartnagel, H. L. :
Pressure sensors based on stress dependence of AlGaAs/GaAs RTD characteristics.
In: Workshop on Heterostructures Technology <1996, Lille>: Proceedings .
[Conference or Workshop Item] , (1996)

Wischmeyer, Frank and Horn, and Niemann, E. and Hartnagel, H. L. :
Rastertunnelmikroskopie als Methode zur Untersuchung des Interfaces zwischen CVD-gewachsenem 3C-SiC und Silizium.
In: Deutsche Physikalische Gesellschaft: Frühjahrstagung <1996, Regensburg>; Tagungsbd .
[Conference or Workshop Item] , (1996)

Aller, Ingo and Hartnagel, H. L. :
Selective area growth of InP by plasma assisted solid-source epitaxy.
In: Journal of electronic materials. 25 (1996), S. 421-424
[Article] , (1996)

Mutamba, Kabula and Sigurdardottir, A. and Miao, J. and Dehé, A. and Aller, and Hartnagel, H. L. :
Uniaxial stress dependence of AlGaAs/GaAs RTD characteristics for sensor applications.
In: Micromechanics Europe Conference <1996, Barcelona, Spain>: Proceedings. S. 85 .
[Conference or Workshop Item] , (1996)

Beilenhoff, Klaus and Heinrich, and Hartnagel, H. L. :
Analysis of MIM series capacitances for coplanar MMICs.
In: Microwaves and optoelectronics: MIOP '95 <1995, Sindelfingen>: Digest. S. 124-128 .
[Conference or Workshop Item] , (1995)

Pirling, Thilo and Fricke, and Schüßler, and Lee, and Fuess, H. and Hartnagel, H. L. :
Investigations on Pd/In-based high temperature stable ohmic contacts on GaAs by x-ray reflectometry and diffractometry.
In: Materials science and engineering. B 29 (1995), S. 70-73
[Article] , (1995)

Sigurdardottir, Anna and Krozer, V. and Hartnagel, H. L. :
Modeling and design of InAs/AlSb-resonant tunneling diodes.
In: Applied physics letters. 67 (1995), No. 22, S. 3313-3315
[Article] , (1995)

Aller, Ingo and Hartnagel, H. L. :
Selective growth of InP by plasma assisted solid-source epitaxy.
In: International Conference on Indium Phosphide and Related Materials <7, 1995, Sapporo, Japan>: Proceedings. S. 325-328 .
[Conference or Workshop Item] , (1995)

Grajal, J. and Krozer, V. and Hartnagel, H. L. and Gismero, J. :
Simulation of the influence of interface states on HBTs.
In: Workshop on Compound Semiconductor Devices and Integrated Circuits: WOCSDICE 95 <19, 1995, Stockholm, Schweden>: Abstracts .
[Conference or Workshop Item] , (1995)

Grüb, Andreas and Simon, and Krozer, and Lin, and Shaalan, and Beilenhoff, and Sigurdardottir, A. and Hartnagel, H. L. :
Terahertz research at TH Darmstadt.
In: International Workshop on Terahertz Electronics <3, 1995, Zermatt, Schweiz>: Proceedings .
[Conference or Workshop Item] , (1995)

Pirling, Thilo and Fuess, H. and Hartnagel, H. L. and Rück, :
Investigations on Pd/In metallisations on GaAs.
In: Gesellschaft für Schwerionenforschung: Scientific report 1994. - Darmstadt: GSI, 1995. S. 184. GSI, Darmstadt
[Book Section] , (1994)

Beilenhoff, K. and Klingbeil, Harald and Heinrich, W. and Hartnagel, H. L. :
Open and Short Circuits in Coplanar MMIC�s.
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[Article] , (1993)

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