Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ED, MWPTHz |
2023-12-21 17:10 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
Introduction of a Guided Guided-ModeMode-Resonance Structure in the Uni Uni-TravelingTraveling- Carrier Photodiode for Enhancement of Photoabsorption Efficiency Ryota Kojima, Taiichi Otsuji, Akira Satou (Tohoku Univ.) ED2023-57 MWPTHz2023-67 |
[more] |
ED2023-57 MWPTHz2023-67 pp.20-24 |
ED, MWPTHz |
2023-12-22 11:05 |
Miyagi |
RIEC, Tohoku Univ. (Primary: On-site, Secondary: Online) |
High sensitivity THz Detection based on a Rectenna Graphene FET implemented with 3D Rectification Effect Hironobu Seki, Sinnosuke Uchigasaki, Koichi Tamura, Chao Tang, Akira Satou, Hirokazu Hukidome (RIEC, Tohoku Univ.), Tetsuya Suemitsu (NICHe), Takashi Uchino (Tohoku Institute of Technology), Yuma Takida, Hiroaki Minamide (RIKEN), Taiichi Otsuji (RIEC, Tohoku Univ.) ED2023-64 MWPTHz2023-74 |
In order to realize a super-smart society, next-generation high-speed, high-capacity wireless communication technologies... [more] |
ED2023-64 MWPTHz2023-74 pp.52-57 |
ED, MWPTHz |
2022-12-19 17:10 |
Miyagi |
|
ED2022-78 MWPTHz2022-49 |
We experimentally investigate the effect of high-intensity subcarrier signal input to the UTC-PD-integrated HEMT working... [more] |
ED2022-78 MWPTHz2022-49 pp.34-37 |
ED, THz |
2021-12-20 13:00 |
Miyagi |
(Primary: On-site, Secondary: Online) |
[Invited Talk]
Recent Progress in Carrier Down-Conversion Devices Between Optical Communication and Beyond 5G Wireless Communication Akira Satou, Dai Nakajima, Kazuki Nishimura, Tomotaka Hosotani, Katsumi Iwatsuki, Tetsuya Suemitsu, Keisuke Kasai, Masato Yoshida, Taiichi Otsuji (Tohoku Univ.) ED2021-48 |
echnologies that seamlessly converges optical networks and wireless networks with small delay and low power consumption ... [more] |
ED2021-48 pp.1-5 |
MW, ED |
2021-01-29 14:50 |
Online |
Online |
A study on precise extraction of parasitic resistances in InGaAs HEMTs Keigo Yaguchi (Tokyo Univ. of Science), Tomotaka Hosotani (Tohoku Univ.), Yohtaro Umeda, Kyoya Takano (Tokyo Univ. of Science), Tetsuya Suemitsu, Akira Satou (Tohoku Univ.) ED2020-35 MW2020-88 |
In this paper, we propose a new method to extract the parasitic resistances of high electron mobility transistor (HEMT) ... [more] |
ED2020-35 MW2020-88 pp.38-43 |
ED, THz [detail] |
2019-12-23 14:55 |
Miyagi |
|
Observation of Broadband THz Emission from Near-IR Laser-Pumped Multilayer Graphene Takahiro Komiyama, Takayuki Watanabe (Tohoku Univ.), Sergey Morozov, Mikhail Fadeev, Vladimir Utochkin (IPM-RAS), Hirokazu Fukidome, Akira Satou, Taiichi Otsuji (Tohoku Univ.) ED2019-80 |
We experimentally observe THz emission from non-Bernal-stacked multilayer graphene thermally decomposed on a C-face SiC ... [more] |
ED2019-80 pp.17-20 |
ED, THz [detail] |
2019-12-24 10:05 |
Miyagi |
|
Preliminary Study of Photocurrent Output from the Gate Electrode of a Grating-Gate Plasmonic THz Detector Taku Saito, Masaya Suzuki, Tomotaka Hosotani, Taiichi Otsuji (Tohoku Univ.), Yuma Takida, Hiromasa Ito, Hiroaki Minamide (RIKEN.), Akira Satou (Tohoku Univ.) ED2019-88 |
We have developed grating-gate plasmonic THz detectors, which are promising as room-temperature-operating, sensitive, hi... [more] |
ED2019-88 pp.49-52 |
ED, THz |
2018-12-18 10:05 |
Miyagi |
RIEC, Tohoku Univ. |
2D nanoantennas for Controlling Polarization Characteristics of a Grating-Gate Plasmonic THz Detector Masaya Suzuki, Tomotaka Hosotani, Tetsuya Suemitsu (Tohoku Univ.), Yuma Takida, Hiromasa Ito, Hiroaki Minamide (RIKEN), Taiich Otsuji, Akira Satou (Tohoku Univ.) ED2018-64 |
[more] |
ED2018-64 pp.43-46 |
ED, THz |
2017-12-19 10:05 |
Miyagi |
RIEC, Tohoku Univ |
Optical-to-MMW Carrier-Frequency Down-Conversion by InP-HEMT Yuya Omori, Tomotaka Hosotani, Taichi Otsuji, Katsumi Iwatsuki, Tetsuya Suemitsu (Tohoku Univ), Kaoru Higuma, Junichiro Ichikawa (Sumitomo Osaka Cement), Takahide Sakamoto, Naokatsu Yamamoto (NICT), Akira Satou (Tohoku Univ) ED2017-83 |
[more] |
ED2017-83 pp.41-45 |
ED |
2016-12-19 16:30 |
Miyagi |
RIEC, Tohoku Univ |
Improvement of light receiving efficiency of Asymmetric-Dual-Grating-Gate High-Electron-Mobility-Transistor by series array and lens integration Tomotaka Hosotani, Fuzuki Kasuya, Hiroki Taniguchi, Takayuki Watanabe, Tetsuya Suemitsu, Taiichi Otsuji (Tohoku Univ.), Yuma Takida, Hiromasa Ito, Hiroaki Minamide (RIKEN), Tadao Ishibashi (NTT Electronics Techno), Makoto Shimizu (NEL), Akira Satou (Tohoku Univ.) ED2016-84 |
Asymmetric-dual-grating-gate high-electron-mobility-transistors (ADGG-HEMTs) are expected for room-temperature operating... [more] |
ED2016-84 pp.23-28 |
ED |
2014-12-23 10:05 |
Miyagi |
|
Broadband characteristics of plasmonic terahertz detection using asymmetric dual-grating-gate high-electron-mobility transistors Akira Satou, Stephane Bobanga Tombet, Takayuki Watanabe, Tetsuya Kawasaki, Tetsuya Suemitsu (Tohoku Univ.), Denis V Fateev, Vyacheslav V Popov (IREE), Hiroaki Minamide, Hiromasa Ito (RIKEN), Dominique Coquillat, Wojciech Knap (Univ. Montpellier 2), Guillaume Ducournau (IEMN), Taiichi Otsuji (Tohoku Univ.) ED2014-109 |
We compare the measured broadband characteristics of the responsivity of asymmetric dual-grating-gate high-elect... [more] |
ED2014-109 pp.63-67 |
ED |
2013-12-17 13:30 |
Miyagi |
Research Institute of Electrical Communication Tohoku University |
[Invited Talk]
Novel concepts and technology for terahertz device applications using graphene Victor Ryzhii, Akira Satou (Tohoku Univ.), Maxim Ryzhii (Univ. of Aizu), Taiichi Otsuji (Tohoku Univ.) ED2013-106 |
Recent progress in study on terahertz device applications using graphene will be reviewed. The device concepts exploitin... [more] |
ED2013-106 pp.91-96 |
ED |
2013-12-17 14:10 |
Miyagi |
Research Institute of Electrical Communication Tohoku University |
Ultrahigh Sensitive and Frequency-Tunable Terahertz Detection by Asymmetric Dual-Grating-Gate HEMTs Tetsuya Kawasaki, Shinya Hatakeyama, Yuki Kurita (Tohoku Univ.), Guillaume Ducournau (IEMN), Dominique Coquillat (Univ. Montpellier 2 & CNRS), Kengo Kobayashi, Akira Satou (Tohoku Univ.), Yahya M. Meziani (Univ. Salamanca), Vyacheslav. V. Popov (Kotelnikov Inst. Radio Eng. Electron), Wojciech Knap (Univ. Montpellier 2 & CNRS), Tetsuya Suemitsu, Taiichi Otsuji (Tohoku Univ.) ED2013-107 |
We report on ultrahigh sensitive and frequency-tunable terahertz (THz) detectors by our original asymmetric dual-grating... [more] |
ED2013-107 pp.97-100 |
EST |
2013-05-10 13:00 |
Kanagawa |
NTT Science and Core Technology Laboratory Group |
Numerical study of terahertz two-dimensional plasmons in graphene Akira Satou, Victor Ryzhii (Tohoku Univ.), Vladimir Mitin, Fedir Vasko (Univ. at Buffalo), Taiichi Otsuji (Tohoku Univ.) EST2013-4 |
We develop a numerical model for simulation of plasmons in graphene with grating-gate structures, based on the Boltzmann... [more] |
EST2013-4 pp.15-20 |
ED |
2012-12-17 15:40 |
Miyagi |
Tohoku University |
Terahertz Population Inversion in Graphene by Optical Pulse Excitation Akira Satou, Victor Ryzhii, Yuki Kurita, Taiichi Otsuji (Tohoku Univ.) ED2012-98 |
We theoretically studied the nonequilibrium carrier relaxation dynamics and the terahertz population inversion in intrin... [more] |
ED2012-98 pp.29-33 |
LQE, CPM, EMD, OPE, R |
2012-08-23 09:35 |
Miyagi |
Tohoku Univ. |
Plasma Instability in Two-Dimensional Electron Gas in Double-Grating-Gate HEMT Akira Satou, Hiromi Shida (Tohoku Univ.), Viacheslav V. Popov (RAS), Taiichi Otsuji (Tohoku Univ.) R2012-20 EMD2012-26 CPM2012-51 OPE2012-58 LQE2012-24 |
[more] |
R2012-20 EMD2012-26 CPM2012-51 OPE2012-58 LQE2012-24 pp.1-4 |
ED |
2011-12-15 13:40 |
Miyagi |
Tohoku University |
Stimulated Terahertz Emission from Optically Pumped Graphene Takayuki Watanabe, Stephane Boubanga Tombet, Tetsuya Fukushima, Akira Satou, Taiichi Otsuji (Tohoku Univ.), Victor Ryzhii (Univ. of Aizu) ED2011-114 |
We conduct time domain spectroscopy studies and show that graphene sheet amplifies an incoming terahertz field. The grap... [more] |
ED2011-114 pp.79-83 |
ED |
2010-12-16 16:25 |
Miyagi |
Tohoku University (Research Institute of Electrical Communication) |
Nonequilibrium Carrier Relaxation Dynamics in Optically Pumped Graphene and Population Inversion in Terahertz Range Akira Satou (Tohoku Univ.), Victor Ryzhii (Univ. of Aizu), Stephane Boubanga-Tombet, Taiichi Otsuji (Tohoku Univ.) ED2010-163 |
We study theoretically the population inversion in terahertz (THz) frequency in intrinsic graphene under
optical pulse ... [more] |
ED2010-163 pp.31-34 |
ED |
2010-12-16 16:50 |
Miyagi |
Tohoku University (Research Institute of Electrical Communication) |
Coherent and Tunable Terahertz Emission from Nano-metric Field Effect Transistor at Room Temperature Stephane Boubanga Tombet, Akira Satou (Tohoku Univ.), Victor Ryzhii (Univ. of Aizu), Taiichi Otsuji (Tohoku Univ.) ED2010-164 |
We report on reflective electro-optic sampling measurements of TeraHertz emission from nanometer-gate-length InGaAs-base... [more] |
ED2010-164 pp.35-39 |
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