Zobrazeno 1 - 10
of 330
pro vyhledávání: '"G. Ducournau"'
Publikováno v:
APL Photonics, Vol 1, Iss 7, Pp 076102-076102-8 (2016)
We show that photoconductors based on low-temperature-grown GaAs (LT-GaAs) can be efficiently operated by 1.55 μm telecom wavelength by using metallic mirror based optical cavities. Two different semi-transparent front mirrors are compared: the firs
Externí odkaz:
https://doaj.org/article/93a8a357f8ff4a25ad71115177bad270
Publikováno v:
APL Photonics, Vol 1, Iss 3, Pp 031302-031302-6 (2016)
We demonstrate a low-threshold, compact, room temperature, and continuous-wave terahertz molecular laser optically pumped by a mid-infrared quantum cascade laser. These characteristics are obtained, thanks to large dipole transitions of the active me
Externí odkaz:
https://doaj.org/article/52fda4fdc36a422eadf392b70da84738
Autor:
G. Di Gioia, E. Frayssinet, M. Samnouni, V. Chinni, P. Mondal, J. Treuttel, X. Wallart, M. Zegaoui, G. Ducournau, Y. Roelens, Y. Cordier, M. Zaknoune
Publikováno v:
Journal of Electronic Materials
Journal of Electronic Materials, 2023, 52, pp.5249-5255. ⟨10.1007/s11664-023-10499-3⟩
Journal of Electronic Materials, 2023, 52, pp.5249-5255. ⟨10.1007/s11664-023-10499-3⟩
International audience; Quasi-vertical gallium nitride (GaN) Schottky diodes on silicon carbide (SiC) substrates were fabricated for frequency multiplier applications. The epitaxial structure employed had an n− layer of 590 nm with doping 6.6 × 10
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f596451b1f9cb33278570c4dad6a11
https://hal.science/hal-04115301
https://hal.science/hal-04115301
Akademický článek
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Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2022, Delft, Netherlands. pp.1-1, ⟨10.1109/IRMMW-THz50927.2022.9895790⟩
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2022, Delft, Netherlands. pp.1-1, ⟨10.1109/IRMMW-THz50927.2022.9895790⟩
International audience; We present an optoelectronic THz mixer based on irondoped InGaAs integrated into a plasmonic microcavity. The measured conversion loss is as low as ∼30 dB at 300 GHz, which constitutes a 30 dB improvement in comparison to st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::303b19be320f5fcdb953410e0e77da86
https://hal.science/hal-03794818
https://hal.science/hal-03794818
Publikováno v:
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz)
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2022, Delft, Netherlands. pp.1-2, ⟨10.1109/IRMMW-THz50927.2022.9895722⟩
2022 47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2022, Delft, Netherlands. pp.1-2, ⟨10.1109/IRMMW-THz50927.2022.9895722⟩
International audience; We investigate the development of on-wafer multiline Thru-Reflect-Line calibration kits to enable transistor characterization beyond 110 GHz. The final objective is to measure the S parameters of a HEMT having a very high cut-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4303fed1f186f6761135ddf94b5cd981
https://hal.science/hal-03794291
https://hal.science/hal-03794291
Publikováno v:
47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 28 August-2 September 2022, Delft
47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 28 August-2 September 2022, Delft, Aug 2022, Delft, Netherlands. pp.1-2, ⟨10.1109/IRMMW-THz50927.2022.9895942⟩
47th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 28 August-2 September 2022, Delft, Aug 2022, Delft, Netherlands. pp.1-2, ⟨10.1109/IRMMW-THz50927.2022.9895942⟩
International audience; We present experimental results about terahertz gain measurements in ammonia gas optically pumped by a quantum cascade laser. The gain was measured with the help of a vector network analyzer (VNA) and reached 17 dB/m at 1.07 T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ee168e279f8b8611a049e61d641eeab
https://hal.science/hal-03835277
https://hal.science/hal-03835277
Publikováno v:
99th ARFTG Microwave Measurement Conference 2022, colocated with IEEE/MTT-S International Microwave Symposium, IMS 2022
99th ARFTG Microwave Measurement Conference 2022, colocated with IEEE/MTT-S International Microwave Symposium, IMS 2022, Jun 2022, Denver, United States. ⟨10.1109/ARFTG54656.2022.9896490⟩
99th ARFTG Microwave Measurement Conference 2022, colocated with IEEE/MTT-S International Microwave Symposium, IMS 2022, Jun 2022, Denver, United States. ⟨10.1109/ARFTG54656.2022.9896490⟩
International audience; This paper presents an innovative impedance tuner architecture aiming at on-wafer characterization. The proposed impedance tuner is composed of an integrated attenuator, which can be tuned in an analog manner, and a transmissi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e24bb15d12f5d2e078c2b9b8c310228
https://hal.science/hal-03698168
https://hal.science/hal-03698168
Autor:
William R. Eisenstadt, Mark Roos, Devin Morris, Jose Luis Gonzalez-Jimenez, Christopery Mounet, Manuel J. Barragan, Gildas Leger, Florent Cilici, Estelle Lauga-Larroze, Salvador Mir, Sylvain Bourdel, M. Margalef-Rovira, I. Alaji, H. Ghanem, G. Ducournau, C. Gaquiere
Publikováno v:
2022 IEEE European Test Symposium (ETS).
Akademický článek
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