日本語
The University of Electro-Communications 
Graduate School of Informatics and Engineering 
Department of Engineering Science 

Project Assistant Professor 
Akifumi Asahara 

Personal website  

Career
東京大学物性研究所 末元研究室  日本学術振興会特別研究員(DC2)  2013/04-2015/03 
東京大学理学系研究科 山本研究室  日本学術振興会特別研究員(PD)  2015/04-2015/07 
電気通信大学情報理工学研究科 美濃島研究室  特任研究員  2015/08-2016/09 
電気通信大学情報理工学研究科 美濃島研究室  特任助教  2016/10-Present 

Academic background
University of Tokyo  Faculty of Engineering  Department of Aeronautics and Astronautics  2009/03  Graduated 
University of Tokyo  Graduate School of Science  Department of Physics  Doctoral program  2015/03  Completed 

Academic degrees
Ph.D.  The University of Tokyo  2015/03/24 

Current research areas
Optical engineering, Photon science 
General applied physics 
Condensed matter physics I 
Atomic/Molecular/Quantum electronics 

Research keywords
Optical frequency comb 
Ultrafast spectroscopy 
Solid state physics 

Current research subjects
Development of Novel Measurement Technique by Dual-Comb Spectroscopy  Optical Comb, Fiber Laser, Ultrafast Spectroscopy, Astronomical Observation, Space Technology  2015/08/01-Present 

Published papers
Paper  Yes  Development of ultrafast time-resolved dual-comb spectroscopy  Akifumi Asahara and Kaoru Minoshima  APL Photonics  2, 041301-1-041301-6  2017/02/21  10.1063/1.4976730 
Paper  Yes  Dual-comb spectroscopy for rapid characterization of complex optical properties of solids  Akifumi Asahara, Akiko Nishiyama, Satoru Yoshida, Ken-ichi Kondo, Yoshiaki Nakajima, and Kaoru Minoshima  Optics Letters  41/ 21, 4971-4974  2016/11  10.1364/OL.41.004971 
Paper  Yes  Direct generation of 2-ps blue pulses from gain-switched InGaN VCSEL assessed by up-conversion technique  Asahara, Akifumi, Chen, Shaoqiang, Ito, Takashi, Yoshita, Masahiro, Liu, Wenjie, Zhang, Baoping, Suemoto, Tohru, Akiyama, Hidefumi  SCIENTIFIC REPORTS  4, 108-111  2014/09  2045-2322  10.1038/srep06401 
Paper  Yes  Ultrafast dynamics of photoinduced semiconductor-to-metal transition in the optical switching nano-oxide Ti3O5  Asahara, Akifumi, Watanabe, Hiroshi, Tokoro, Hiroko, Ohkoshi, Shin-ichi, Suemoto, Tohru  PHYSICAL REVIEW B  90/ 1, 108-111  2014/07  1098-0121  10.1103/PhysRevB.90.014303 
Paper  Yes  Ultrafast dynamics of reversible photoinduced phase transitions in rubidium manganese hexacyanoferrate investigated by midinfrared CN vibration spectroscopy  Asahara, Akifumi, Nakajima, Makoto, Fukaya, Ryo, Tokoro, Hiroko, Ohkoshi, Shin-ichi, Suemoto, Tohru  PHYSICAL REVIEW B  86/ 19, 108-111  2012/11  1098-0121  10.1103/PhysRevB.86.195138 
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Research presentations
Oral presentation for an academic conference  Development of All-Fiber-Type Dual-Comb Spectrometer  The 24th Congress of the International Commission for Optics (ICO-24)  Yes  Y. Wang, A. Asahara, K. Kondo, K. Minoshima  2017/08/22 
Oral presentation for an academic conference  One-shot 3D measurement method using nonlinear optical gating with a chirped optical frequency comb  The 24th Congress of the International Commission for Optics (ICO-24)  Yes  Y. Tanaka, M. Uchida, T. Kato, A. Asahara, K. Minoshima  2017/08/22 
Oral presentation for an academic conference  Rapid Evaluation Method of Anisotropy by Dual Comb Spectroscopy  The 24th Congress of the International Commission for Optics (ICO-24)  Yes  Ken-ichi Kondo, Akifumi Asahara, Yue Wang, Ichiro Shoji, Kaoru Minoshima  2017/08/22 
Oral presentation for an academic conference  Portable and Stable Dual-Comb Spectroscopic System Based on All-Fiber Setup  The 12th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2017)  Yes  Yue Wang, Akifumi Asahara, Ken-ichi Kondo, Kaoru Minoshima  2017/08/03 
Oral presentation for an academic conference  Coherent Modulation of Interference Signals in Dual-Comb Spectroscopy  The 12th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR 2017)  Yes  Akifumi Asahara, Ken-ichi Kondo, Yue Wang, Kaoru Minoshima  2017/08/02 
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Intellectual property rights
Patent  光コムの制御方法及び光コムの制御装置  特願2017-037766  2017/02/28  Filed 
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Awards
第2回OPJ優秀講演賞  2016/11 
PSS Young Researcher Awards(EXCON10 Best Poster Awards)  2010/07 
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Grants-in-aid for scientific research
デュアルコムを用いたコヒーレント分光法の開発  Young scientists (B)  2017/04-2019/03 
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Memberships of academic societies
Optical Society of America (OSA) 
The Japan Society of Applied Physics 
The Physical Society of Japan 
レーザー学会 
日本光学会 
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