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Preu, Sascha ; Mittendorff, Martin ; Winnerl, Stephan ; Cojocari, Oleg ; Penirschke, Andreas :
THz Autocorrelators for ps Pulse Characterization Based on Schottky Diodes and Rectifying Field-Effect Transistors.
[Online-Edition: http://dx.doi.org/10.1109/TTHZ.2015.2482943]
In: IEEE Transactions on Terahertz Science and Technology ISSN 2156-342X
[Artikel] , (2015)

Penirschke, Andreas ; Sobornytskyy, M. ; Preu, Sascha ; Mittendorff, Martin ; Winnerl, Stephan ; Hoefle, Matthias ; Cojocari, Oleg ; Jakoby, Rolf :
Compact quasi-optical Schottky detector with fast voltage response.
[Online-Edition: http://dx.doi.org/10.1109/IRMMW-THz.2014.6956027]
In: Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on.
[Konferenz- oder Workshop-Beitrag] , (2014)

Hoefle, Matthias ; Penirschke, Andreas ; Amrhein, Andreas ; Cojocari, Oleg ; Trier, Marc ; Piironen, Petri ; Jakoby, Rolf :
Detector Design for 89GHz Direct Detection Radiometer with New European Low Noise Zero-Bias Schottky Diodes.
In: ESA Microwave Technology and Techniques Workshop 2012.
[Konferenz- oder Workshop-Beitrag] , (2012)

Hoefle, Matthias ; Schneider, Katharina ; Penirschke, Andreas ; Cojocari, Oleg ; Jakoby, Rolf :
Characterization and impedance matching of new high sensitive planar Schottky detector diodes.
In: German Microwave Conference (GeMIC) 2011.
[Konferenz- oder Workshop-Beitrag] , (2011)

Hoefle, Matthias ; Penirschke, Andreas ; Cojocari, Oleg ; Jakoby, Rolf :
Advanced RF characterization of new planar high sensitive zero-bias Schottky diodes.
In: European Microwave Integrated Circuits Conference (EuMIC).
[Konferenz- oder Workshop-Beitrag] , (2011)

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. :
Design and characterization of Schottky structures for THz-applications.
In: Frequenz, 61 S. 172-177.
[Artikel] , (2007)

Cojocari, Oleg :
Schottky technology for THz-electronics.
Shaker , Aachen
[Dissertation]

Cojocari, Oleg ; Oprea, I. ; Sydlo, Cezary ; Zimmermann, R. ; Walber, A. ; Henneberger, R. ; Hartnagel, Hans L. :
THz Schottky diodes on epitaxial AIGaAs-membrane.
In: [Elektronische Ressource] IRMMW-THz 2007 : conference digest of the Joint 32nd International Conference on Infrared and Millimeter Waves, and 15th International Conference on Terahertz Electronics : City Hall, Cardiff, UK, 3rd - 7rd September, 2007.- Pisc . IEEE Operations Center , Piscataway, NJ
[Konferenz- oder Workshop-Beitrag] , (2007)

Schür, Jan ; Biber, Stephan ; Cojocari, Oleg ; Sydlo, Cezary ; Schmidt, Lorenz-Peter ; Hartnagel, Hans-Ludwig :
600 GHz waveguide mixer fabricated by combined conventional and silicon micromachining.
In: EuMA Þ Journal of the European Microwave Association, 1 S. 250-256.
[Artikel] , (2006)

Schuer, J. ; Biber, S. ; Cojocari, Oleg ; Sydlo, C. ; Schmidt, L.-P. ; Hartnagel, H.-L. :
Comparative noise characterization and conversion loss measurements of Schottky diode mixers at 600~GHz.
In: WOCSDICE '06 : the 30th Workshop on Compound Semiconductor Devices and Integrated Circuits held in Europe <30, 2006, Fiskebäckskil, Sweden> .- 2006,S. 85-87 .
[Konferenz- oder Workshop-Beitrag] , (2006)

Cojocari, Oleg ; Hartnagel, Hans L. :
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 S. 2544-2552.
[Artikel] , (2006)

Biber, S. ; Schuer, J. ; Cojocari, Oleg ; Hartnagel, H.-L. ; Schmidt, L-P. :
Silicon micomachining and electrical characterization of a 600 GHz Schottky-diode mixer with integrated octagonal horn antenna.
In: Proceedings of the 4th ESA Workshop on Millimetre Wave Technology and Applications (ESA-MWTA-06) Workshop on Millimetre Wave Technology and Applications <4, 2006, Espoo>. - Millilab, Espoo, Finland, 2006 .
[Konferenz- oder Workshop-Beitrag] , (2006)

Mutamba, K. ; Yilmazoglu, Oktay ; Cojocari, Oleg ; Sydlo, Cezary ; Pavlidis, Dimitris ; Hartnagel, Hans L. :
Technology of Wide-Bandgap Diode Struvtures for High Frequency Operation.
In: International Semiconductor Conference, 2006 : 29th edition ; September 27 - 29, 2006, Sinaia, Romania ; CAS 2006 / organized by National Institute for Research and Development in Microtechnologies (IMT-Bucharest). - Piscataway, NJ : IEEE Operations Cente . IEEE Operations Center , Piscataway, NJ
[Konferenz- oder Workshop-Beitrag] , (2006)

Schuer, J. ; Biber, S. ; Cojocari, Oleg ; Schmidt, L.-P. ; Hartnagel, H.-L. :
600 GHz GaAs Schottky diode mixer in split-block technology.
In: IRMMW-THz 2005 : conference digest of the 2005 joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics <30, 2005, Williamsburg, VA.>, S. 469-470. - 2005 .
[Konferenz- oder Workshop-Beitrag] , (2005)

Schür, J. ; Biber, S. ; Cojocari, Oleg ; Mottet, B. ; Schmidt, L.-P. ; Hartnagel, H.-L. :
600 GHz heterodyne mixer in waveguide technology using a GaAs Schottky diode.
In: International Symposium of Space THz-Technology ISSTT-05 <16, 2005,Göteborg, Sw.>, paper. - 2005 .
[Konferenz- oder Workshop-Beitrag] , (2005)

Sydlo, Cezary ; Kögel, Benjamin ; Cojocari, Oleg ; Feiginov, Michael N. ; Hartnagel, Hans L. ; Meissner, Peter :
Broadband power detector using a circularly-toothed planar logarithmic-periodic antenna.
In: Conference proceedings ANTEM 2005, 11th International Symposium on Antenna Technology and Applied Electromagnetics : Palais du Grand Large, Saint-Malo, France, June 15th - 17th, 2005 / Department of Electrical and Computer Engineering, [University of Mani .
[Konferenz- oder Workshop-Beitrag] , (2005)

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Hartnagel, Hans L. ; Schmidt, L.-P. :
DC and IF-noise performance optimisation of GaAs Schottky diodes for THz applications.
In: Semiconductor science and technology, 20 S. 23-32.
[Artikel] , (2005)

Cojocari, Oleg ; Sydlo, Cezary ; Hartnagel, Hans L. ; Tiginyanu, I. M. :
Quasi-vertical Schottky-structures for THZ-Applications.
In: Proceedings of the 4th International Conference on Microelectronics and Computer Science (ICMCSı05), September 15-17, 2005, Chisinau, Moldova, pp. 219-225 .
[Konferenz- oder Workshop-Beitrag] , (2005)

Mottet, B. ; Sydlo, Cezary ; Mutamba, ; Cojocari, Oleg ; Hartnagel, Hans L. :
RF and thermal design of compound semiconductor devices using MEMS approach.
In: Frequenz, 59 S. 131-136.
[Artikel] , (2005)

Cojocari, Oleg ; Sydlo, C. ; Hartnagel, H.-L. ; Biber, S. ; Schür, J. ; Schmidt, L.-P. :
Schottky-structures for THz-Applications based on quasi-vertical design-concept.
In: International Symposium of Space THz-Technology ISSTT-05 <16, 2005, Göteborg, Sw.> : paper . - 2005 .
[Konferenz- oder Workshop-Beitrag] , (2005)

Cojocari, Oleg ; Sydlo, C. ; Hartnagel, H.-L. :
WID : a new Schottky-Structure design for THz-applications.
In: IRMMW-THz 2005 : conference digest of the 2005 joint 30th International Conference on Infrared and Millimeter Waves and 13th International Conference on Terahertz Electronics <30, 2005, Williamsburg, Va.>, s. 447-448 .
[Konferenz- oder Workshop-Beitrag] , (2005)

Sydlo, Cezary ; Kögel, Benjamin ; Cojocari, Oleg ; Hartnagel, Hans L. ; Meissner, Peter :
Characterisation of a circularly-toothed planar logarithmic-periodic antenna for broadband power detection.
In: Frequenz, 9/10 S. 207-210.
[Artikel] , (2004)

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Hartnagel, Hans L. ; Schmidt, L.-P. :
GaAs Schottky diode fabrication for THz-frequency mixer applications.
In: Workshop on Compound Semiconductor Device and Integrated Circuits <28, 2004, Smolenice>: Proceedings WOCSDICE '04 ...- S. 121-122 .
[Konferenz- oder Workshop-Beitrag] , (2004)

Cojocari, Oleg ; Popa, V. ; Ursaki, V. V. ; Tiginyanu, I. M. ; Hartnagel, Hans L. ; Daumiller, I. :
GaN Schottky multiplier diodes prepared by electroplating : a study of passivation technology.
In: Semiconductor science and technology, 19 S. 1273-1279.
[Artikel] , (2004)

Cojocari, Oleg ; Biber, S. ; Mottet, Bastian ; Sydlo, Cezary ; Hartnagel, Hans L. ; Schmidt, L.-P. :
IF-noise improvement of the GaAs Schottky diodes for THz-frequency mixer applications.
In: Conference proceedings / 12th European Gallium Arsenide and other Compound Semiconductors Application Symposium : Monday 11th & Tuesday 12th October 2004 ; [at European Microwave Week, Amsterdam, 11 - 15 October 2004] / [endorsed by IEEE; Electron Devices .
[Konferenz- oder Workshop-Beitrag] , (2004)

Schür, J. ; Biber, S. ; Gumbmann, F. ; Mottet, Bastian ; Cojocari, Oleg ; Schmidt, L.-P. ; Hartnagel, Hans L. :
Micromachined split-block Schottky-diode mixer for 600GHz.
In: Conference digest of the 2004 joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics : September 27 - October 1, 2004, University of Karlsruhe (TH), Karlsruhe, Germany / [sponsored b . IEEE Operations Center , M. Thumm ..., ed.- Piscataway, NJ
[Konferenz- oder Workshop-Beitrag] , (2004)

Cojocari, Oleg ; Popa, V. ; Ursaki, V. V. ; Tiginyanu, I. M. ; Mutamba, Kabula ; Saglam, Mustafa ; Hartnagel, Hans L. :
Micrometer-size GaN Schottky-diodes for MM-wave frequency multipliers.
In: Conference digest of the 2004 joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics : September 27 - October 1, 2004, University of Karlsruhe (TH), Karlsruhe, Germany / [sponsored b . IEEE Operations Center , M. Thumm ..., ed.- Piscataway, NJ
[Konferenz- oder Workshop-Beitrag] , (2004)

Mottet, Bastian ; Sydlo, Cezary ; Kögel, Benjamin ; Robillard, Q. de ; Cojocari, Oleg ; Hartnagel, Hans L. :
The impact of process optimisation on planar THz-Schottky device reliability.
In: 2004 IEEE International Reliability Physics Symposium proceedings : 42nd annual ; Phoenix, Arizona, April 25 - 29, 2004 / sponsored by the IEEE Electron Devices Society and the IEEE Reliability Society.- Piscataway, NJ : IEEE Service Center, 2004.- XII, 7 . IEEE Service Center , Piscataway, NJ
[Konferenz- oder Workshop-Beitrag] , (2004)

Cojocari, Oleg ; Biber, S. ; Rodriguez-Girones Arboli, Manuel ; Mottet, Bastian ; Marchand, L. ; Schmidt, L.-P. ; Hartnagel, Hans L. :
A new structural approach for uniform sub-micrometer anode metallization of planar THz Schottky components.
In: Semiconductor science & technology, 19 S. 537-542.
[Artikel] , (2004)

Biber, S. ; Cojocari, Oleg ; Rehm, G. ; Mottet, Bastian ; Schmidt, L.-P. ; Hartnagel, Hans L. :
A novel system for systematic microwave noise and DC characterization of THz Schottky diodes.
In: IEEE transactions on instrumentation and measurement, Vol. 5 S. 581-587.
[Artikel] , (2004)

Biber, S. ; Schmidt, L.-P. ; Cojocari, Oleg ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Hartnagel, Hans L. :
Systematic quality assessment of Schottky diodes for THz-applications.
In: Workshop on Millimetre Wave Technology and Applications <3, 2003, Espoo>: Proceedings ...21-23 May 2003, Millilab, Espoo, Finland / ed. Juha Mallat.- Noordwijk: ESA Publ. Div., 2003.- 682 S.- (ESA WPP ; 212).- S. 237-242 . ESA Publ. Div. , Noordwijk
[Konferenz- oder Workshop-Beitrag] , (2003)

Cojocari, Oleg ; Mottet, Bastian ; Rodriguez-Girones Arboli, Manuel ; Biber, S. ; Schmidt, L.-P. ; Hartnagel, Hans L. :
Whisker-device-based optimisation of fabrication process for planar THz Schottky diode.
In: Workshop on Millimetre Wave Technology and Applications <3, 2003, Espoo>: Proceedings ...21-23 May 2003, Millilab, Espoo, Finland / ed. Juha Mallat.- Noordwijk: ESA Publ. Div., 2003.- 682 S.- (ESA WPP ; 212).- S. 255-260 . ESA Publ. Div. , Noordwijk
[Konferenz- oder Workshop-Beitrag] , (2003)

Biber, S. ; Cojocari, Oleg ; Rehm, G. ; Mottet, Bastian ; Schmidt, L.-P. ; Hartnagel, Hans L. :
A novel system for systematic IF noise and DC characterization of THz Schottky diodes.
In: IEEE transactions on instrumentation and measurement
[Anderes] , (2003)

Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel ; Marchand, L. ; Garden, C. ; Cojocari, Oleg ; Mottet, Bastian ; Hartnagel, Hans L. :
Process control and failure analysis implementation for THz Schottky-based components.
In: European Symposium on Reliability of Electron Devices, Failure Physics and Analysis <13, 2002, Bellaria>: Reliability of electron devices, failure physics and analysis / guest ed.: Fausto Fantini ...- Oxford: Pergamon Pr., 2002 . Pergamon Pr. , Oxford
[Konferenz- oder Workshop-Beitrag] , (2002)

Ichizli, Victoria M. ; Rodriguez-Girones Arboli, Manuel ; Marchand, L. ; Garden, C. ; Cojocari, Oleg ; Mottet, Bastian ; Hartnagel, Hans L. :
Process control methods for THz Schottky-based components.
In: European Space Components Conference <2002, Toulouse>: Proceedings ... ESCCON 2002 .../ comp. by Robert A. Harris.- Noordwijk: ESA Publ. Div., 2002.- ISBN 92-9092-817-4 . ESA Publ. Div. , Noordwijk
[Konferenz- oder Workshop-Beitrag] , (2002)

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