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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 13 of 13  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, THz 2017-12-19
15:10
Miyagi RIEC, Tohoku Univ Temperature Dependence of the Transconductance of a Dual Gate Graphene Field Effect Transistor
Kenta Sugawara, Takayuki Watanabe, Deepika Yadav, Takahiro Komiyama, Yoshiki Fuse (Tohoku Univ.), Maxim Ryzhii (Aizu Univ.), Victor Ryzhii, Hirokazu Fukidome, Maki Suemitsu, Taiichi Otsuji (Tohoku Univ.) ED2017-91
We report on experimental observation of temperature characteristics of a dual gate graphene field effect transisor (DG-... [more] ED2017-91
pp.73-76
ED 2015-12-22
10:05
Miyagi RIEC, Tohoku Univ Terahertz Emission and Detection from Double Graphene Layer Heterostructures
Deepika Yadav, Stephane Boubanga Tombet, Stevanus Arnold, Takayuki Watanabe (RIEC Tohoku Univ.), Victor Ryzhii (Inst. of Ultra High Freq. Semicond. Elect. Russia), Taiichi Otsuji (RIEC Tohoku Univ.) ED2015-103
We report on experimental observation of terahertz emission and detection in a double graphene layer hetero structure wh... [more] ED2015-103
pp.71-76
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
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
ED, SDM 2012-02-07
16:30
Hokkaido   Gain enhancement in graphene terahertz amplifier with resonant structure
Yuya Takatsuka, Kazuhiro Takahagi, Eiichi Sano (Hokkaido Univ.), Victor Ryzhii (Univ. of Aizu), Taiichi Otsuji (Tohoku Univ.) ED2011-148 SDM2011-165
THz devices have been developed over the last decade to utilise THz waves for non-destructive sensing and high-speed wir... [more] ED2011-148 SDM2011-165
pp.35-40
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
16:00
Miyagi Tohoku University (Research Institute of Electrical Communication) THz Amplifiers with Gain Medium and Field-enhancement Effect
Yuya Takatsuka, Eiichi Sano (Hokkaido Univ.), Victor Ryzhii (Univ. of Aizu), Taiichi Otsuji (Tohoku Univ.) ED2010-162
THz devices have been developed over the last decade to utilise THz waves for non-destructive sensing and high-speed wir... [more] ED2010-162
pp.25-29
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
ED, SDM 2010-02-23
11:35
Okinawa Okinawaken-Seinen-Kaikan Detectors of Terahertz and Infrared Radiation Based on p-i-n Single- and Multiple Graphene Layer Structures
Victor Ryzhii, Maxim Ryzhii (Univ. of Aizu), Taiichi Otsuji (Tohoku Univ.), Vladimir Mitin (Buffalo Univ.) ED2009-209 SDM2009-206
Detectors of terahertz and infrared radiation based on p-i-n graphene structures utilizing interband transitions are pro... [more] ED2009-209 SDM2009-206
pp.77-80
ED 2009-11-30
10:30
Osaka Osaka Science & Technology Center Observation of Coherent THz Emission in Optically Pumped Epitaxial Graphene Heterostructures
Hiromi Karasawa, Takayuki Watanabe, Tsuneyoshi Komori (Tohoku Univ.), Maki Suemitsu (Tohoku Univ. /JST-CREST), Victor Ryzhii (Aizu Univ. /JST-CREST), Taiichi Otsuji (Tohoku Univ. /JST-CREST) ED2009-169
Graphene is a single-layer carbon-atomic honeycomb lattice crystal. Electrons and holes in graphene hold a linear disper... [more] ED2009-169
pp.53-58
SDM, ED 2009-02-26
13:30
Hokkaido Hokkaido Univ. [Invited Talk] Epitaxial Graphene Grown on Si Substrate and Its Applications to Electron Devices
Taiichi Otsuji, Tetsuya Suemitsu, Hyon-Choru Kang, Hiromi Karasawa, Yuu Miyamoto, Hiroyuki Handa, Maki Suemitsu (Tohoku Univ.), Eiichi Sano (Hokkaido Univ.), Maxim Ryzhii, Victor Ryzhii (Univ. of Aizu) ED2008-224 SDM2008-216
This paper reviews recent advances in graphene material epitaxially grown on Si substrate and its applications to electr... [more] ED2008-224 SDM2008-216
pp.1-6
 Results 1 - 13 of 13  /   
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