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Proceedings of the 12th Asia Pacific Physics Conference (APPC12) | 2014

Generation of Wide Range THz Waves near to 1 THz Using a Laser Chaos and a High Bias Voltage

Fumiyoshi Kuwashima; Takuya Shirao; Masahiko Tani; K. Kurihara; Kohji Yamamoto; Masanori Hangyo; Takeshi Nagashima; Hiroshi Iwasawa

Department of Electrical, Electronics and Computer Engineering, Fukui University of Technology, Fukui 910-8505, Japan Research Center for Development of Far-Infrared Region, University of Fukui, Fukui 910-8507, Japan 2 Faculty of Education and Regional Studies, University of Fukui, Fukui 910-8507, Japan Institute of Laser Engineering, Osaka University, Osaka 565-0871, Japan 4 Professor Emeritus, University of Fukui, Fukui 910-8507, Japan E-mail: [email protected] (Received July 14, 2013)


conference on lasers and electro optics | 2013

Generation of wide range and stable THz waves using a laser chaos and a high bias voltage

Fumiyoshi Kuwashima; Takuya Shirao; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Masanori Hangyo; Takeshi Nagashima; Hiroshi Iwasawa

Generation of a wide-range and stable THz waves from a photoconductive antenna excited by a multimode semiconductor chaotic oscillation laser with an optical delayed feedback using an external mirror is investigated. A high bias voltage is also used to generate wide range THz wave. Near to 1THz THz wave is obtained using this system.


The Japan Society of Applied Physics | 2018

Effects of gap width on THz-TDS using laser chaos and metal V-grooved wave guide

Fumiyoshi Kuwashima; Takuya Shirao; Kazuyuki Iwao; Manatsu Ooi; Naoya Sakaue; Takuro Shirasaki; Shiori Gouda; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Osamu Morikawa; Hideaki Kithara; Makoto Nakajima


international conference on infrared, millimeter, and terahertz waves | 2017

Effect of metal V-grooved wave guide gap width on high efficient CW-THz TDS systems using laser chaos and super focusing

Fumiyoshi Kuwashima; Takuya Shirao; Yusuke Akamine; Kazuyuki Iwao; Manatsu Ooi; Naoya Sakaue; Takurou Sirasaki; Siori Gouda; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Osamu Morikawa; Hideaki Kitahara; Makoto Nakajima


The Japan Society of Applied Physics | 2017

Effect of the MVG gap width on THz-TDS systems using laser chaos and super focusing with metal V grooved wave guides (MVG)

Fumiyoshi Kuwashima; Takuya Shirao; Yusuke Akamine; Kazuyuki Iwao; Manatsu Ooi; Naoya Sakaue; Takurou Sirasaki; Siori Gouda; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Osamu Morikawa; Hideaki Kitahara; Takeshi Nagashima; Makoto Nakajima


international conference on infrared, millimeter, and terahertz waves | 2016

High efficient MLD-THz-TDS systems using laser chaos and super focusing with metal V-grooved waveguide

Fumiyoshi Kuwashima; Takuya Shirao; Toshihiro Kishibata; Yusuke Akamine; Noriyuki Iwao; Manatu Ooi; Naoya Sakaue; Takurou Sirasaki; Siori Gouda; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Takeshi Nagashima; Makoto Nakajima; Masanori Hangyo


The Japan Society of Applied Physics | 2016

High efficient THz-TDS system using laser chaos and super focusing with Metal V-grooved wave guide

Fumiyoshi Kuwashima; Takuya Shirao; Yusuke Akamine; Kazuyuki Iwao; Manatsu Ooi; Naoya Sakaue; Takurou Sirasaki; Siori Gouda; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Osamu Morikawa; Takeshi Nagashima; Makoto Nakajima


international conference on infrared, millimeter, and terahertz waves | 2015

High effective generation and detection of THz waves using a laser chaos and a super-focusing with metal V-grooved waveguides

Fumiyoshi Kuwashima; Takuya Shirao; Toshihiro Kishibata; Yusuke Akamine; Noriyuki Iwao; Manatu Ooi; Masahiko Tani; Kazuyoshi Kurihara; Kohji Yamamoto; Takeshi Nagashima; Makoto Nakajima; Masanori Hangyo


international conference on infrared, millimeter, and terahertz waves | 2014

Towards broadband THz-TDS: LN waveguide THz emission super focused onto a reversed photoconductive antenna

Gudrun Niehues; Stefan Funkner; Takuya Shirao; Takashi Furuya; Toshihiro Kishibata; Takeshi Okuyama; Yusuke Akamine; Kohji Yamamoto; Fumiyoshi Kuwashima; Kodo Kawase; Masahiko Tani


Archive | 2014

Generation of Wide range THz waves near to 1THz using a laser chaos and a high bias voltage

Fumiyoshi Kuwashima; Takuya Shirao; Masahiko Tani; K. Kurihara; Kohji Yamamoto; Masanori Hangyo; Takeshi Nagashima; Hiroshi Iwasawa

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Fumiyoshi Kuwashima

Fukui University of Technology

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Yusuke Akamine

Fukui University of Technology

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