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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 17 of 17  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, MWPTHz 2022-12-19
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
ED, THz 2021-12-20
(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
MW, ED 2021-01-29
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
ED, THz [detail] 2019-12-23
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
ED, THz [detail] 2019-12-24
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
ED, THz 2018-12-18
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
ED, THz 2017-12-19
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
ED 2016-12-19
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
ED 2014-12-23
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
ED 2013-12-17
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
ED 2013-12-17
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
EST 2013-05-10
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
ED 2012-12-17
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
LQE, CPM, EMD, OPE, R 2012-08-23
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
ED 2011-12-15
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
ED 2010-12-16
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]
ED 2010-12-16
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
 Results 1 - 17 of 17  /   
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