Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Adam Ramer"'
Autor:
E. Dischke, Serguei Chevtchenko, Viktor Krozer, Wolfgang Heinrich, Lars Schellhase, F. Muller, T. Liebchen, Adam Ramer
Publikováno v:
2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz).
We report on a THz detector camera with a monolithically integrated 12×12 detector array of AlGaN/GaN TeraFETs. The camera operates in the range 100 GHz – 2 THz and is the first of its kind with a multidimensional array of 144 pixel based on III-V
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dce55b6dd5139ceb598f916ae9ce426a
https://doi.org/10.1109/irmmw-thz50926.2021.9567181
https://doi.org/10.1109/irmmw-thz50926.2021.9567181
Autor:
Dimitri Stoppel, Mohamed Hussein Eissa, Marion Resch, Viktor Krozer, Javier Martinez, Thualfiqar Al-Sawaf, Nils Weimann, Frank Herzel, Adam Ramer, Michael Hrobak, Tom K. Johansen, Karsten Thurn, Klaus Vollmann, Jochen Moll, Maruf Hossain, Amit Shrestha, Stefan Zorn, Kai Loebbicke, Robert Miesen, Wolfgang Heinrich, Jurgen Bosse, Michael Sterns, Martin Vossiek, Marco Lisker
This article presents the design and prototyping of components for a modular multiple-input-multiple-output (MIMO) millimeter-wave radar for space applications. A single radar panel consists of 8 transmitters (TX) and 8 receivers (RX), which can be p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f44f6022db83907e6bff0d0c140871a
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85096765773
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85096765773
Autor:
Wolfgang Heinrich, Martin Schell, Björn Globisch, Viktor Krozer, E. Dischke, Adam Ramer, Shevchenko Sergey, Garrit Schwanke, Robert B. Kohlhaas, Simon Nellen, Lars Liebermeister, Milan Deumer
Publikováno v:
2020 45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
The terahertz response between 100 GHz and 2 THz is compared for three different detectors: a TeraFET, a Schottky barrier diode and an InGaAs-based photoconductive antenna. Additionally, the baseband frequency response is measured to evaluate the pot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9863207262869d957eb3275c824c697d
https://doi.org/10.1109/irmmw-thz46771.2020.9370838
https://doi.org/10.1109/irmmw-thz46771.2020.9370838
Autor:
Wolfgang Heinrich, Gareth T. Maker, Sebastian Boppel, Mehran Jamshidifar, Viktor Krozer, Daniel Voß, Graeme P. A. Malcolm, Nils Hempler, Alvydas Lisauskas, Adam Ramer, Hartmut G. Roskos, J.R.P. Bain, Wissem Zouaghi, Maris Bauer, Shevchenko Sergey, Cormac McDonnell
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 39:262-272
Aiming for non-destructive testing and security applications, we investigate transmission-mode imaging and spectroscopic sensing using terahertz (THz) pulses from a commercial optical parametric oscillator (OPO) in combination with THz detectors base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1a0a929089ce9431154eaa913fbb6fd
https://doi.org/10.1007/s10762-017-0447-1
https://doi.org/10.1007/s10762-017-0447-1
Autor:
Wolfgang Heinrich, Dovile Cibiraite, John T. Sheridan, Sergey A. Chevtchenko, Viktor Krozer, Alvydas Lisauskas, Hartmut G. Roskos, Adam Ramer, Min Wan
Publikováno v:
2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We present a THz detector based on AlGaN/GaN HEMT technology implemented for a multi-pixel array and tested in a confocal THz imaging system. The multi-pixel array shows good homogeneity where the ratio between the most and the least sensitive pixels
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49cf2725b47035564cd36031f7d05c71
https://doi.org/10.1109/irmmw-thz.2019.8874217
https://doi.org/10.1109/irmmw-thz.2019.8874217
Autor:
Juozas Vyšniauskas, Jérôme Tignon, Viktor Krozer, Marek Burakevic, Hartmut G. Roskos, S. Massabeau, Shevchenko Sergey, Wolfgang Heinrich, Juliette Mangeney, Kestutis Ikamas, Sukhdeep Dhillon, Maris Bauer, Adam Ramer, Dovilė Čibiraitė, Alvydas Lisauskas
Publikováno v:
Semiconductor Science and Technology
Semiconductor Science and Technology, IOP Publishing, 2018, 33 (12), pp.124013. ⟨10.1088/1361-6641/aae905⟩
Semiconductor Science and Technology, IOP Publishing, 2018, 33 (12), pp.124013. ⟨10.1088/1361-6641/aae905⟩
Many THz applications require detection of sub-picosecond THz pulses. Electronic detectors, in particular, can address this challenge. We report on the detection of sub-picosecond THz pulses generated by a large-area interdigitated photoconductive an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::115070820f8c6aa64895671c74ed8bb1
https://publica.fraunhofer.de/handle/publica/255690
https://publica.fraunhofer.de/handle/publica/255690
Autor:
Adam Ramer, Viktor Krozer, Günther Tränkle, Ahid S. Hajo, Irmantas Kašalynas, Hans-Joachim Wurfl, Wolfgang Heinrich, Hartmut G. Roskos, Sebastian Boppel, Maris Bauer, Gintaras Valušis, Alvydas Lisauskas, M. Ragauskas, Sergey A. Chevtchenko
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 6:348-350
This letter reports on the influence of illumination conditions on the detector response of three-terminal devices. Antenna-coupled field-effect transistors for the plasmonic detection of THz radiation (TeraFETs) were realized using a 0.25- $\mu\hbox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4db89a8907ab81defb321afed1a6389
https://doi.org/10.1109/tthz.2016.2520202
https://doi.org/10.1109/tthz.2016.2520202
Autor:
Jonas Matukas, Adam Ramer, A. Lisauskasm, V. Krozerm, Hartmut G. Roskos, Dovile Cibiraite, Serguei Chevtchenko, Wolfgang Heinrich, Maris Bauer
Publikováno v:
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz).
We present optimized THz detectors based on AlGaN/GaN field-effect transistors with integrated broadband bow-tie antennas (bow-tie TeraFETs). Designed with a comprehensive circuit model and fabricated with a recently developed AlGaN/GaN MMIC process,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5383e65ee20dd33d4aba829842267286
https://doi.org/10.1109/irmmw-thz.2017.8067118
https://doi.org/10.1109/irmmw-thz.2017.8067118
Autor:
Wolfgang Heinrich, Marek Burakevic, S. Massabeau, Viktor Krozery, Kestutis Ikamas, Serguei Chevtchenko, Juliette Mangeney, Alvydas Lisauskas, Maris Bauer, Adam Ramer, Dovile Cibiraite, Hartmut G. Roskosy
Publikováno v:
2017 International Conference on Noise and Fluctuations (ICNF).
Here we report on the efficient detection of THz radiation generated from Ti:sapphire femtosecond laser system. The large-area interdigitated antenna is excited by optical pulses with pulse duration from 15 to 47 fs. We have tested two AlGaN/GaN HEMT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd58441c07fe3fb32ec3800254927a0c
https://doi.org/10.1109/icnf.2017.7985961
https://doi.org/10.1109/icnf.2017.7985961
Autor:
Viktor Krozer, Marek Burakevic, Wolfgang Heinrich, Alvydas Lisauskas, Adam Ramer, Hartmut G. Roskos
Publikováno v:
2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz).
We present a study of the emission of terahertz radiation from multi-finger AlGaN/GaN field-effect transistors.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7501ab5087c80bba9e4e930689204f69
https://doi.org/10.1109/irmmw-thz.2016.7758975
https://doi.org/10.1109/irmmw-thz.2016.7758975