Zobrazeno 1 - 10
of 181
pro vyhledávání: '"Safumi Suzuki"'
Autor:
Fanqi Meng, Zhenling Tang, Petr Ourednik, Jahnabi Hazarika, Michael Feiginov, Safumi Suzuki, Hartmut G. Roskos
Publikováno v:
APL Photonics, Vol 9, Iss 8, Pp 086103-086103-8 (2024)
Oscillators based on resonant tunneling diodes (RTDs) are able to reach the highest oscillation frequency among all electronic THz emitters. However, the emitted power from RTDs remains limited. Here, we propose linear RTD oscillator arrays capable o
Externí odkaz:
https://doaj.org/article/7040a10937b34d3aaca8e38020f49d2f
Autor:
Safumi Suzuki, Masahiro Asada
Publikováno v:
Applied Physics Express, Vol 17, Iss 7, p 070101 (2024)
During the last two decades, rapid advancements in RT oscillators that use resonant tunneling diodes (RTDs) have been reported, with operations approaching the limits of electronic device oscillators. Although RTD devices are known for HF operation,
Externí odkaz:
https://doaj.org/article/d25a626c08d749d38ba14a205d3e1d79
Autor:
Shoei Endo, Safumi Suzuki
Publikováno v:
Applied Physics Express, Vol 17, Iss 4, p 044001 (2024)
We proposed and fabricated a terahertz resonant-tunneling-diode oscillator integrated with two offset slot-ring antennas for high-output power and high-directivity radiation. In this device, the length of the antenna, approximately half the wavelengt
Externí odkaz:
https://doaj.org/article/7c94f5278986407a8bd845bf4438a6aa
Publikováno v:
Sensors, Vol 21, Iss 13, p 4367 (2021)
We used a resonant-tunneling-diode (RTD) oscillator as the source of a terahertz-wave radar based on the principle of the swept-source optical coherence tomography (SS-OCT). Unlike similar reports in the terahertz range, we apply the stepwise frequen
Externí odkaz:
https://doaj.org/article/eb4a06ee581f4e7e8383b3b26152aad3
Publikováno v:
AIP Advances, Vol 9, Iss 8, Pp 085020-085020-6 (2019)
We proposed and fabricated resonant-tunneling-diode (RTD) terahertz oscillators integrated with a cylindrical cavity. Oscillation frequency of 3 THz is expected from theoretical analysis. As a preliminary experiment, the proposed oscillator was fabri
Externí odkaz:
https://doaj.org/article/2f034ad18cb74d54b63f76b677e2afed
Autor:
Masahiro Asada, Safumi Suzuki
Publikováno v:
Sensors, Vol 21, Iss 4, p 1384 (2021)
A compact source is important for various applications utilizing terahertz (THz) waves. In this paper, the recent progress in resonant-tunneling diode (RTD) THz oscillators, which are compact semiconductor THz sources, is reviewed, including principl
Externí odkaz:
https://doaj.org/article/f474226a3fd6483bbf5a99cfb4690f1a
Publikováno v:
Sensors, Vol 20, Iss 23, p 6848 (2020)
We introduce a new principle for distance measurement in the terahertz-wave range using a resonant-tunneling-diode (RTD) oscillator as a source at 511 GHz and relying on the frequency-modulated continuous-wave (FMCW) radar technique. Unlike the usual
Externí odkaz:
https://doaj.org/article/0566fe96005644eaadcdc6382efbd93a
Publikováno v:
AIP Advances, Vol 7, Iss 3, Pp 035020-035020-5 (2017)
We report a terahertz (THz)-wave differential detection based on simultaneous dual-wavelength up-conversion in a nonlinear optical MgO:LiNbO3 crystal with optical and electronic THz-wave sources. The broadband parametric gain and noncollinear phase-m
Externí odkaz:
https://doaj.org/article/b57e12d46c38440e9adef39063fab5ae
Publikováno v:
Photonics, Vol 5, Iss 4, p 52 (2018)
We present the principle of a terahertz-wave radar and its proof-of-concept experimental verification. The radar is based on a 522 GHz resonant-tunneling-diode oscillator, whose terahertz output power can be easily modulated by superimposing the modu
Externí odkaz:
https://doaj.org/article/40bb41ea5b1d480aa49c59ca86f7d685
Autor:
Mingxiang Stephen Li, Ta Van Mai, Christophe Fumeaux, Safumi Suzuki, Withawat Withayachumnankul
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 13:178-187
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a09a7b43f6cc2455a3bbfedf15d1dfd
https://doi.org/10.1109/tthz.2023.3239809
https://doi.org/10.1109/tthz.2023.3239809