Strong Proton-Phonon Coupling in Perovskite-type Electrolyte of Proton-Conducting Fuel Cell

Masaya Nagai, Hikaru Takehara, Masaaki Ashida, Yuji Okuyama, Yukimune Kani

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　2023　Research paper (international conference proceedings)

Evaluation of the Oxygen Migration Energy in Doped Ceria by Terahertz Spectroscopy

Masaya Nagai, Yuto Furutani, Hikaru Takehara, Tomohide Morimoto, Masaaki Ashida, Yuji Okuyama, Yukimune Kani

Physical Review Applied　Vol. 16　No. 6　2021/12　Research paper (scientific journal)

Enhanced Magneto-Optical Kerr Effect of GaAs-Based P-N Junctions in the Terahertz Range

Keita Miyagawa, Masaya Nagai, Masaaki Ashida, Changsu Kim, Hidefumi Akiyama

Journal of Infrared, Millimeter, and Terahertz Waves　Vol. 42　No. 3　p. 325-337　2021/03　Research paper (scientific journal)

Assessing the atomic structure of the defect complex in a solid electrolyte by photoluminescence measurements

Naoki Tanimoto, Masaya Nagai, Masaaki Ashida, Yuji Okuyama, Yukimune Kani

Japanese Journal of Applied Physics　Vol. 60　No. 3　p. 032004-032004　2021/03/01　Research paper (scientific journal)

Coherent detection of ultrabroadband infrared pulses using a single crystal of diamond

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

Applied Physics Express　Vol. 14　No. 3　p. 032005-032005　2021/03/01　Research paper (scientific journal)

Terahertz-induced martensitic transformation in partially stabilized zirconia

Masaya Nagai, Yuhei Higashitani, Masaaki Ashida, Koichi Kusakabe, Hirohiko Niioka, Azusa Hattori, Hidekazu Tanaka, Goro Isoyama, Norimasa Ozaki

2021/01/27

Packaged dish antenna for wireless terahertz photonic crystal waveguide devices

Daniel Headland, Xiongbin Yu, Masaya Nagai, Masayuki Fujita, Tadao Nagatsuma

2020 International Symposium on Antennas and Propagation, ISAP 2020　p. 15-16　2021/01/25　Research paper (international conference proceedings)

Packaged Dish Antenna for Wireless Terahertz Photonic Crystal Waveguide Devices

Daniel Headland, Xiongbin Yu, Masaya Nagai, Masayuki Fujita, Tadao Nagatsuma

2020 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP)　p. 15-16　2021　Research paper (international conference proceedings)

Plane photoacoustic wave generation in liquid water using irradiation of terahertz pulses

Masaaki Tsubouchi, Hiromichi Hoshina, Masaya Nagai, Goro Isoyama

Scientific Reports　Vol. 10　No. 1　2020/12　Research paper (scientific journal)

Plane photoacoustic wave generation in liquid water by THz-FEL

Masaaki Tsubouchi, Hiromichi Hoshina, Masaya Nagai, Goro Isoyama

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　Vol. 2020-　p. 281-282　2020/11/08　Research paper (international conference proceedings)

Gapless Sensitive Detection of Ultrabroadband Infrared Pulses Using Single Crystal of Diamond

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　Vol. 2020-　p. 183-184　2020/11/08　Research paper (international conference proceedings)

Carrier dynamics and excitation of e u3+ ions in GaN

Dolf Timmerman, Brandon Mitchell, Shuhei Ichikawa, Masaya Nagai, Masaaki Ashida, Yasufumi Fujiwara

Physical Review B　Vol. 101　No. 24　2020/06/15　Research paper (scientific journal)

Extremely high-intensity operation of a THz free-electron laser using an electron beam with a higher bunch charge

Keigo Kawase, Masaya Nagai, Kazuya Furukawa, Masaki Fujimoto, Ryukou Kato, Yoshihide Honda, Goro Isoyama

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT　Vol. 960　2020/04　Research paper (scientific journal)

Time-Domain Magnetic Field-Difference Spectroscopy for Semiconductors Using Circularly Polarized Terahertz Pulses

Masaya Nagai, Atsushi Nakane, Hiroyasu Suzukawa, Tomohide Morimoto, Masaaki Ashida

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY　Vol. 10　No. 1　p. 51-57　2020/01　Research paper (scientific journal)

Characteristics of resonance-induced optical vortices and spatial reshaping

Wei Zhang, Aaron Charous, Masaya Nagai, Daniel M. Mittleman, Rajind Mendis

Optics Letters　Vol. 44　No. 23　p. 5800-5800　2019/12/01　Research paper (scientific journal)

Terahertz time-domain magneto-optic spectroscopy without the polarization-resolution technique

Masaya Nagai, Atsushi Nakane, Hiroyasu Suzukawa, Tomohide Morimoto, Masaaki Ashida

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　Vol. 2019-　2019/09/01　Research paper (international conference proceedings)

Microscopic ion migration in solid electrolytes revealed by terahertz time-domain spectroscopy.

Tomohide Morimoto, Masaya Nagai, Yosuke Minowa, Masaaki Ashida, Yoichiro Yokotani, Yuji Okuyama, Yukimune Kani

Nature communications　Vol. 10　No. 1　p. 2662-2662　2019/06/17　Research paper (scientific journal)

Microscopic ion migration in solid electrolytes revealed by terahertz time-domain spectroscopy

Tomohide Morimoto, Masaya Nagai, Yosuke Minowa, Masaaki Ashida, Yoichiro Yokotani, Yuji Okuyama, Yukimune Kani

NATURE COMMUNICATIONS　Vol. 10　2019/06　Research paper (scientific journal)

Magneto-THz spectroscopy by circularly polarized wave with magnetic field modulation

Nakane Atsushi, Suzukawa Hiroyasu, Morimoto Tomohide, Nagai Masaya, Ashida Masaaki

JSAP Annual Meetings Extended Abstracts　Vol. 2019.1　p. 897-897　2019/02/25

Beyond the Goos-Hänchen effect: Resonance-induced spatial reshaping and its application in measuring resonance linewidth

Wei Zhang, Aaron Charous, Masaya Nagai, Daniel M. Mittleman, Rajind Mendis

Optics InfoBase Conference Papers　Vol. 2019　2019　Research paper (international conference proceedings)

Solid-state Biased Coherent Detection of Ultrabroadband Infrared Pulses Using Single Crystal of Diamond

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2019 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2019　Research paper (international conference proceedings)

Longitudinal Optical Phonons Modified by Organic Molecular Cation Motions in Organic-Inorganic Hybrid Perovskites

Masaya Nagai, Takuya Tomioka, Masaaki Ashida, Mizuki Hoyano, Ryo Akashi, Yasuhiro Yamada, Tomoko Aharen, Yoshihiko Kanemitsu

Physical Review Letters　Vol. 121　No. 14　2018/10/05　Research paper (scientific journal)

Quantitative monitoring of the internal field in the depletion layer of a GaAs-based solar cell with terahertz radiation

Keita Miyagawa, Masaya Nagai, Genki Yamashita, Masaaki Ashida, Changsu Kim, Hidefumi Akiyama, Yoshihiko Kanemitsu

APPLIED PHYSICS LETTERS　Vol. 113　No. 16　2018/10　Research paper (scientific journal)

Extraordinary optical reflection resonances and bound states in the continuum from a periodic array of thin metal plates

Wei Zhang, Aaron Charous, Masaya Nagai, Daniel M. Mittleman, Rajind Mendis

Optics Express　Vol. 26　No. 10　p. 13195-13204　2018/05/14　Research paper (scientific journal)

Responsibility of plasma current for the generation of the highest frequency part of ultrabroadband coherent infrared pulses with 200-THz bandwidth

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2018　Research paper (international conference proceedings)

Picoseconds ion motions in materials for solid oxide fuel cell

Tomohide Morimoto, Masaya Nagai, Masaaki Ashida, Yoichiro Yokotani, Yuji Okuyama, Yukimune Kani

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2018　Research paper (international conference proceedings)

Mass spectrometry for the organic solids using an intense THz free electron laser pulse

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Masanori Fuyuki, Keigo Kawase, Akinori Irizawa, Goro Isoyama, Jun Aoki, Michisato Toyoda

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2018　Research paper (international conference proceedings)

Simple THz Faraday spectroscopic system using a phase shifter

Atsushi. Nakane, Tomohide. Morimoto, Masaya. Nagai, Masaaki. Ashida

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2018　Research paper (international conference proceedings)

Extraordinary Optical Reflection and Giant Goos-Hanchen Effect from a Periodic Array of Thin Metal Plates

Wei Zhang, Rajind Mendis, Aaron Charous, Masaya Nagai, Daniel Mittleman

2018 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2018　Research paper (international conference proceedings)

Artificial dielectric polarizing-beamsplitter and isolator for the terahertz region

Rajind Mendis, Masaya Nagai, Wei Zhang, Daniel M. Mittleman

Scientific Reports　Vol. 7　No. 1　2017/12/01　Research paper (scientific journal)

Structure dependence of the waveforms of THz radiation from GaAs-based photovoltaic devices

K. Miyagawa, G. Yamashita, M. Nagai, C. Kim, H. Akiyama, Y. Kanemitsu, M. Ashida

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　2017/10/12　Research paper (international conference proceedings)

Excitation frequency dependence of the desorption of hydrogen-bonded solids using picosecond THz free electron laser pulses

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Masanori Fuyuki, Keigo Kawase, Akinori Irizawa, Goro Isoyama, Jun Aoki, Michisato Toyoda

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz　2017/10/12　Research paper (international conference proceedings)

Detection of oxide ion conductivity with THz-time-domain-spectroscopy

Morimoto Tomohide, Nagai Masaya, Ashida Masaaki, Yokotani Yoichiro, Kani Yukimune

JSAP Annual Meetings Extended Abstracts　Vol. 2017.2　p. 52-52　2017/08/25

Faraday effect measurement in THz region using a quarter wave plate

Nakane Atsushi, Tomohide Morimoto, Masaya Nagai, Masaaki Ashida

JSAP Annual Meetings Extended Abstracts　Vol. 2017.2　p. 790-790　2017/08/25

Luminescence induced by electrons outside zinc oxide nanoparticles driven by intense terahertz pulse trains

Masaya Nagai, Shingo Aono, Masaaki Ashida, Keigo Kawase, Akinori Irizawa, Goro Isoyama

NEW JOURNAL OF PHYSICS　Vol. 19　2017/05　Research paper (scientific journal)

Sensitive monitoring of photocarrier densities in the active layer of a photovoltaic device with time-resolved terahertz reflection spectroscopy

Genki Yamashita, Eiichi Matsubara, Masaya Nagai, Changsu Kim, Hidefumi Akiyama, Yoshihiko Kanemitsu, Masaaki Ashida

APPLIED PHYSICS LETTERS　Vol. 110　No. 7　p. 71108-071108/5　2017/02　Research paper (scientific journal)

Luminescence of ZnO excited by single intense picosecond terahertz pulse

Xingyu Sun, Masaya Nagai, Masaaki Ashida, Goro Isoyama

Optics InfoBase Conference Papers　Vol. Part F78-JSAP 2017　2017/01　Research paper (international conference proceedings)

Self-polarized terahertz magnon absorption in a single crystal of BiFeO3

Eiichi Matsubara, Takeshi Mochizuki, Masaya Nagai, Masaaki Ashida

PHYSICAL REVIEW B　Vol. 94　No. 5　2016/08　Research paper (scientific journal)

Free Carriers versus Excitons in CH3NH3PbI3 Perovskite Thin Films at Low Temperatures: Charge Transfer from the Orthorhombic Phase to the Tetragonal Phase

Le Quang Phuong, Yasuhiro Yamada, Masaya Nagai, Naoki Maruyama, Atsushi Wakamiya, Yoshihiko Kanemitsu

JOURNAL OF PHYSICAL CHEMISTRY LETTERS　Vol. 7　No. 13　p. 2316-2321　2016/07　Research paper (scientific journal)

Polymer Morphological Change Induced by Terahertz Irradiation

Hiromichi Hoshina, Hal Suzuki, Chiko Otani, Masaya Nagai, Keigo Kawase, Akinori Irizawa, Goro Isoyama

SCIENTIFIC REPORTS　Vol. 6　2016/06　Research paper (scientific journal)

Non-contact AC Hall measurement with circularly polarized THz pulses

Morimoto Tomohide, Yamashita Genki, Nagai Masaya, Ashida Masaaki

JSAP Annual Meetings Extended Abstracts　Vol. 2016.1　p. 914-914　2016/03/03

Terahertz Artificial Dielectric Lens

Rajind Mendis, Masaya Nagai, Yiqiu Wang, Nicholas Karl, Daniel M. Mittleman

SCIENTIFIC REPORTS　Vol. 6　2016/03　Research paper (scientific journal)

Evaluation of complex conductivity in a circularly polarized field by terahertz time-domain reflection spectroscopy with a phase shifter

Tomohide Morimoto, Genki Yamashita, Masaya Nagai, Masaaki Ashida

APPLIED PHYSICS EXPRESS　Vol. 9　No. 2　2016/02　Research paper (scientific journal)

Quantitative evaluation of photocarriers in semiconductor p-i-n structures with time-resolved terahertz reflection spectroscopy

G. Yamashita, E. Matsubara, M. Nagai, C. Kim, H. Akiyama, Y. Kanemitsu, M. Ashida

2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2016　Research paper (international conference proceedings)

Enhancement of Intensity of Ultrabroadband Coherent Infrared Pulses Generated from Air Plasma by Controlling Polarization of Driving Pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2016　Research paper (international conference proceedings)

22aBH-11 The competition between electron emission and impact ionization in ZnO nanocrystals using the picoseconds THz free electron laser

Aono S., Nagai M., Ashida M., Irizawa A., Kawase K., Isoyama G.

Meeting Abstracts of the Physical Society of Japan　Vol. 71　p. 1633-1633　2016

21pBH-13 Development of ultrabroadband infrared tim-resolved spectroscopy system using air plasma

Matsubara E., Nagai M., Ashida M.

Meeting Abstracts of the Physical Society of Japan　Vol. 71　p. 1548-1548　2016

THz pulse generation from doped GaAs depending on the concentration

Miyagawa Keita, Yamashita Genki, Nagai Masaya, Kim Changsu, Akiyama Hidehumi, Kanemitsu Yoshihiko, Ashida masaaki

Meeting Abstracts of the Physical Society of Japan　Vol. 71　p. 1372-1372　2016

Ablation via intermolecular vibration driven by the intense picosecond THz pulses

Nagai M., Matsubara E., Ashida M., Fuyuki M., Kawase K., Irizawa A., Isoyama G., Aoki J., Toyoda M.

Meeting Abstracts of the Physical Society of Japan　Vol. 71　p. 1344-1344　2016

Altering Polymer Morphology by Intense Terahertz Wave Irradiation

Hiromichi Hoshina, Hal Suzuki, Chiko Otani, Masaya Nagai, Keigo Kawase, Akinori Irizawa, Goro Isoyama

2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2016　Research paper (international conference proceedings)

Extension of the High Frequency Limit of Time Domain Spectroscopy up to 200 THz Using Two-color Pumped Air Plasma

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2016　Research paper (international conference proceedings)

Anomalous luminescence of ZnO nanoparticles irradiated by the nonresonant intense THz pulses

Masaya Nagai, Shingo Aono, Masaaki Ashida, Keigo Kawase, Akinori Irizawa, Goro Isoyama

2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2016　Research paper (international conference proceedings)

Desorption via large-amplitude intermolecular vibration driven by the intense picosecond THz pulses

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Masanori Fuyuki, Keigo Kawase, Akinori Irizawa, Goro Isoyama, Jun Aoki, Michisato Toyoda

2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2016　Research paper (international conference proceedings)

THz-induced luminescence in ZnO nanocrystals with strong dependence on the excitation frequency

Masaya Nagai, Shingo Aono, Masaaki Ashida, Keigo Kawase, Akinori Irizawa, Goro Isoyama

2016 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2016　Research paper (international conference proceedings)

Extreme-sensitivity terahertz polarizer inspired by an anisotropic cut-through metamaterial

Takehito Suzuki, Masaya Nagai, Yudai Kishi

OPTICS LETTERS　Vol. 41　No. 2　p. 325-328　2016/01　Research paper (scientific journal)

Free-carrier dynamics and band tails in Cu2ZnSn(SxSe1-x)4: Evaluation of factors determining solar cell efficiency

Le Quang Phuong, Makoto Okano, Genki Yamashita, Masaya Nagai, Masaaki Ashida, Akira Nagaoka, Kenji Yoshino, Yoshihiko Kanemitsu

PHYSICAL REVIEW B　Vol. 92　No. 11　2015/09　Research paper (scientific journal)

Ultrafast near-infrared nonlinear absorption in a multiferroic single crystal of bismuth ferrite

Matsubara Eiichi, Mochizuki Takeshi, Nagai Masaya, Ito Toshimitsu, Ashida Masaaki

Jpn. J. Appl. Phys.　Vol. 54　No. 9　p. 92201-92201　2015/08/05

Photocarrier dynamics in undoped and Na-doped Cu2ZnSnS4 single crystals revealed by ultrafast time-resolved terahertz spectroscopy

Le Quang Phuong, Makoto Okano, Genki Yamashita, Masaya Nagai, Masaaki Ashida, Akira Nagaoka, Kenji Yoshino, Yoshihiko Kanemitsu

APPLIED PHYSICS EXPRESS　Vol. 8　No. 6　2015/06　Research paper (scientific journal)

Terahertz laminated-structure polarizer with high extinction ratio and transmission power

Yudai Kishi, Masaya Nagai, John C. Young, Keisuke Takano, Masanori Hangyo, Takehito Suzuki

APPLIED PHYSICS EXPRESS　Vol. 8　No. 3　2015/03　Research paper (scientific journal)

Photoinduced Extended Drude response observed with ultrabroadband infrared time-domain spectroscopy in InSb

Matsubara Eiichi, Morimoto Tomohide, Nagai Masaya, Ashida Masaaki

JSAP Annual Meetings Extended Abstracts　Vol. 2015.1　p. 841-841　2015/02/26

Errautm: "intrinsic carrier multiplication efficiency in bulk Si crystals evaluated by optical-pump/terahertz-probe spectroscopy" (Applied Physics Letters (2014)) 105 231118))

G. Yamashita, E. Matsubara, M. Nagai, Y. Kanemitsu, M. Ashida

Applied Physics Letters　Vol. 106　No. 5　2015/02/02　Research paper (scientific journal)

Achromatic wave plate in THz frequency region based on parallel metal plate waveguides with a pillar array

Masaya Nagai, Noriyuki Mukai, Yosuke Minowa, Masaaki Ashida, Takehito Suzuki, Jun Takayanagi, Hideyuki Ohtake

OPTICS EXPRESS　Vol. 23　No. 4　p. 4641-4649　2015/02　Research paper (scientific journal)

Recent progress on the generation of ultrabroadband coherent infrared pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

Optics InfoBase Conference Papers　Vol. 2019　2015　Research paper (international conference proceedings)

Extended-Drude Response of Photocarriers in InSb Revealed with Ultrabroadband Infrared Time-Domain Spectroscopy

Eiichi Matsubara, Tomohide Morimoto, Masaya Nagai, Masaaki Ashida

2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2015　Research paper (international conference proceedings)

16aCF-8 Ablation dynamics of the organic crystals using the picoseconds THz free electron laser

Nagai M., Ashida M., Kawase K., Irizawa A., Kato R., Isoyama G., Fuyuki M., Aoki J., Toyoda M.

Meeting Abstracts of the Physical Society of Japan　Vol. 70　p. 1161-1161　2015

22pCN-6 The ablation of organic microcrystals by picosecond free electron laser

Nagai M., Matsubara E., Ashida M., Fuyuki M., Kawase K., Irizawa A., Kato R., Isoyama G.

Meeting Abstracts of the Physical Society of Japan　Vol. 70　p. 1507-1507　2015

22aCP-2 Photoexcited carrier dynamics in InSb observed with ultrabroadband infrared time-domain spectroscopy

Morimoto T., Matsubara E., Nagai M., Ashida M.

Meeting Abstracts of the Physical Society of Japan　Vol. 70　p. 1492-1492　2015

Pulse shaping of intense few-cycle terahertz pulses for nonlinear spectroscopy

Masaya Nagai, Yutaka Kamon, Eiichi Matsubara, Yosuke Minowa, Masaaki Ashida

ULTRAFAST PHENOMENA AND NANOPHOTONICS XIX　Vol. 9361　2015　Research paper (international conference proceedings)

Intrinsic carrier multiplication efficiency in bulk Si crystals evaluated by optical-pump/terahertz-probe spectroscopy

G. Yamashita, E. Matsubara, M. Nagai, Y. Kanemitsu, M. Ashida

APPLIED PHYSICS LETTERS　Vol. 105　No. 23　2014/12　Research paper (scientific journal)

Free carrier dynamics in Cu₂ZnSnS₄ single crystals investigated by optical pump - THz probe spectroscopy

Quang Phuong Le, Makoto Okano, Genki Yamashita, Tomohide Morimoto, Yasuhiro Yamada, Akira Nagaoka, Kenji Yoshino, Masaya Nagai, Masaaki Ashida, Yoshihiko Kanemitsu

JSAP Annual Meetings Extended Abstracts　Vol. 2014.2　p. 3056-3056　2014/09/01

Capture of a terahertz wave in a photonic-crystal slab

Ryoma Kakimi, Masayuki Fujita, Masaya Nagai, Masaaki Ashida, Tadao Nagatsuma

NATURE PHOTONICS　Vol. 8　No. 8　p. 657-663　2014/08　Research paper (scientific journal)

Visualization of extended-drude response of photoexcited carriers in insb by ultrabroadband infrared time-domain spectroscopy

Eiichi Matsubara, Tomohide Morimoto, Masaya Nagai, Masaaki Ashida

Optics InfoBase Conference Papers　2014/07/21　Research paper (international conference proceedings)

Generation and Detection of THz Pulses With a Bandwidth Extending Beyond 4 THz Using a Subpicosecond Yb-Doped Fiber Laser System

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Jun Takayanagi, Hideyuki Ohtake

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY　Vol. 4　No. 4　p. 440-446　2014/07　Research paper (scientific journal)

Photoinduced absorption with ultrafast decay constants in a large single crystal of BiFeO3

Takeshi Mochizuki, Eiichi Matsubara, Masaya Nagai, Toshimitsu Ito, Masaaki Ashida

Optics InfoBase Conference Papers　2014　Research paper (international conference proceedings)

Photoinduced absorption with ultrafast decay constants in a large single crystal of BiFeO3

Takeshi Mochizuki, Eiichi Matsubara, Masaya Nagai, Toshimitsu Ito, Masaaki Ashida

Optics InfoBase Conference Papers　2014　Research paper (international conference proceedings)

Ultrabroadband coherent infrared spectroscopy using air-plasma based generation and detection

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

Optics InfoBase Conference Papers　2014　Research paper (international conference proceedings)

Carrier multiplication in bulk silicon investigated by terahertz spectroscopy

G. Yamashita, E. Matsubara, M. Nagai, Y. Kanemitsu, M. Ashida

2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2014　Research paper (international conference proceedings)

Ultrabroadband Coherent Infrared Spectroscopy Using Air-Plasma Based Generation and Detection

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2014　Research paper (international conference proceedings)

Photoinduced Absorption with Ultrafast Decay Constants in a Large Single Crystal of BiFeO3

Takeshi Mochizuki, Eiichi Matsubara, Masaya Nagai, Toshimitsu Ito, Masaaki Ashida

2014 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2014　Research paper (international conference proceedings)

Achromatic THz wave plate composed of stacked parallel metal plates with a pillar array

Noriyuki Mukai, Masaya Nagai, Yosuke Minowa, Masaaki Ashida, Jun Takayanagi, Hideyuki Ohtake

2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2014　Research paper (international conference proceedings)

Achromatic THz wave plate composed of stacked parallel metal plates

Masaya Nagai, Noriyuki Mukai, Yosuke Minowa, Masaaki Ashida, Jun Takayanagi, Hideyuki Ohtake

OPTICS LETTERS　Vol. 39　No. 1　p. 146-149　2014/01　Research paper (scientific journal)

Ablation of organic crystals using picosecond THz free electron laser pulses

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Keigo Kawase, Akinori Irizawa, Ryukou Kato, Goro Isoyama

2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2014　Research paper (international conference proceedings)

THz time-domain spectroscopy beyond 4 THz using a sub-picosecond Yb-doped fiber laser system

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida, Jun Takayanagi, Hideyuki Ohtake

2014 39TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2014　Research paper (international conference proceedings)

Coherent infrared spectroscopy system from terahertz to near infrared using air plasma produced by 10-fs pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　Vol. 30　No. 6　p. 1627-1630　2013/06　Research paper (scientific journal)

Coherent transitions between the shallow acceptor levels in germanium using intense THz pulses

Masaya Nagai, Yutaka Kamon, Yosuke Minowa, Eiichi Matsubara, Masaaki Ashida

NEW JOURNAL OF PHYSICS　Vol. 15　2013/06　Research paper (scientific journal)

フォトニック結晶スラブを用いたテラヘルツ波吸収体

垣見 亮磨, 冨士田 誠之, 永井 正也, 芦田 昌明, 永妻 忠夫

応用物理学会学術講演会講演予稿集　Vol. 2013.1　p. 908-908　2013/03/11

Ultrabroadband infrared pulse ranging from terahertz region to near infrared using air for both generation and detection

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

Optics InfoBase Conference Papers　2013　Research paper (international conference proceedings)

Terahertz-Wave Absorbers Using a Photonic Crystal Slab

Ryoma Kakimi, Masayuki Fujita, Masaya Nagai, Masaaki Ashida, Tadao Nagatsuma

2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)　2013　Research paper (international conference proceedings)

Design of Terahertz Wire-Grid Polarizer of Laminated Parallel Plates on Cyclo Olefin Polymer Films for High Extinction Ratio less than 10(-6)

Yudai Kishi, Masaya Nagai, John C. Young, Keisuke Takano, Motoki Asai, Masanori Hangyo, Takehito Suzuki

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2013　Research paper (international conference proceedings)

Coherent detection of ultrabroadband coherent infrared pulses up to 150 THz using air

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2013　Research paper (international conference proceedings)

Generation and Detection of Ultrabroadband Coherent Infrared Pulses with Frequencies up to 200 THz Using Air Plasma and 10 fs Pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)　2013　Research paper (international conference proceedings)

Generation and detection of ultrabroadband infrared wave exceeding 200 THz

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

XVIIITH INTERNATIONAL CONFERENCE ON ULTRAFAST PHENOMENA　Vol. 41　2013　Research paper (international conference proceedings)

Achromatic THz wave plate based on the structured parallel metal plates

Noriyuki Mukai, Masaya Nagai, Yosuke Minowa, Masaaki Ashida

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2013　Research paper (international conference proceedings)

Carrier envelope phase control of monocycle THz pulses using an artificial dispersive medium

Masaya Nagai, Eiichi Matsubara, Yosuke Minowa, Masaaki Ashida

2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE AND INTERNATIONAL QUANTUM ELECTRONICS CONFERENCE (CLEO EUROPE/IQEC)　2013　Research paper (international conference proceedings)

Phase-sensitive THz nonlinear spectroscopy in high-T-c superconductor thin film

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2013　Research paper (international conference proceedings)

Coherent Transitions in Doped-Germanium Using Intense Few-Cycle THz Pulses

Masaya Nagai, Yutaka Kamon, Yosuke Minowa, Eiichi Matsubara, Masaaki Ashida

2013 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR)　2013　Research paper (international conference proceedings)

Quantitative evaluation of the photoexcited carriers in bulk Si using optical pump-THz probe spectroscopy

Genki Yamashita, Eiichi Matsubara, Masaya Nagai, Yoshihiko Kanemitsu, Masaaki Ashida

2013 38TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2013　Research paper (international conference proceedings)

Terahertz tomography of a photo-induced carrier based on pump-probe spectroscopy using counterpropagation geometry

Masaaki Tsubouchi, Masaya Nagai, Yasuhiro Ohshima

OPTICS LETTERS　Vol. 37　No. 17　p. 3528-3530　2012/09　Research paper (scientific journal)

Ultrabroadband coherent electric field from far infrared to 200 THz using air plasma induced by 10 fs pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

APPLIED PHYSICS LETTERS　Vol. 101　No. 1　2012/07　Research paper (scientific journal)

High-efficiency terahertz pulse generation via optical rectification by suppressing stimulated Raman scattering process

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida

OPTICS EXPRESS　Vol. 20　No. 6　p. 6509-6514　2012/03　Research paper (scientific journal)

Photonic-Crystal Slab for Terahertz-Wave Integrated Circuits

Tsukasa Ishigaki, Masayuki Fujita, Masaya Nagai, Masaaki Ashida, Tadao Nagatsuma

2012 IEEE PHOTONICS CONFERENCE (IPC)　p. 774-775　2012　Research paper (international conference proceedings)

Trapping a Terahertz Wave in a Photonic-Crystal Slab

Ryoma Kakimi, Masayuki Fujita, Masaya Nagai, Masaaki Ashida, Tadao Nagatsuma

2012 IEEE PHOTONICS CONFERENCE (IPC)　p. 562-563　2012　Research paper (international conference proceedings)

Generation of ultrabroadband coherent infrared wave with 200 THz bandwidth using air plasma driven by intense sub 10 fs pulses

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2012　Research paper (international conference proceedings)

Generation and detection of ultrabroadband coherent infrared pulse with 200 THz bandwidth

Eiichi Matsubara, Masaya Nagai, Masaaki Ashida

2012 37TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2012　Research paper (international conference proceedings)

High-efficiency terahertz pulse generation via optical rectification by suppressing stimulated Raman scattering process

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida

2012 37TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2012　Research paper (international conference proceedings)

High-efficient THz electric pulse generation via optical rectification by suppressing stimulated Raman scattering

Masaya Nagai, Eiichi Matsubara, Masaaki Ashida

2012 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)　2012　Research paper (international conference proceedings)

Phase compensation in THz frequency region using the mirror with metal disk array

Masaya Nagai, Masaharu Kimura, Yosuke Minowa, Masaaki Ashida

2012 37TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)　2012　Research paper (international conference proceedings)

Extremely Thin Metamaterial as Slab Waveguide at Terahertz Frequencies

Yosuke Minowa, Masaya Nagai, Hu Tao, Kebin Fan, A. C. Strikwerda, Xin Zhang, Richard D. Averitt, Koichiro Tanaka

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY　Vol. 1　No. 2　p. 441-449　2011/11　Research paper (scientific journal)

THz Nonlinear Spectroscopy of Solids

Koichiro Tanaka, Hideki Hirori, Masaya Nagai

IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY　Vol. 1　No. 1　p. 301-312　2011/09　Research paper (scientific journal)

Real-time line projection for fast terahertz spectral computed tomography

Emmanuel Abraham, Yoshiyuki Ohgi, Masa-aki Minami, Mukesh Jewariya, Masaya Nagai, Tsutomu Araki, Takeshi Yasui

OPTICS LETTERS　Vol. 36　No. 11　p. 2119-2121　2011/06　Research paper (scientific journal)

Dynamical Franz–Keldysh effect in GaAs/AlGaAs multiple quantum wells induced by single-cycle terahertz pulses

K. Shinokita, H. Hirori, M. Nagai, N. Satoh, Y. Kadoya, K. Tanaka

Applied Physics Letters　Vol. 97　No. 21　p. 211902-211902　2010/11/22　Research paper (scientific journal)

Ladder Climbing on the Anharmonic Intermolecular Potential in an Amino Acid Microcrystal via an Intense Monocycle Terahertz Pulse

Mukesh Jewariya, Masaya Nagai, Koichiro Tanaka

PHYSICAL REVIEW LETTERS　Vol. 105　No. 20　2010/11　Research paper (scientific journal)

Excitonic interactions with intense terahertz pulses in ZnSe/ZnMgSSe multiple quantum wells

Hideki Hirori, Masaya Nagai, Koichiro Tanaka

PHYSICAL REVIEW B　Vol. 81　No. 8　2010/02　Research paper (scientific journal)

Dynamical Franz-Keldysh Effect in GaAs Induced by Monocycle Terahertz Pulse

Keisuke Shinokita, Hideki Hirori, Masaya Nagai, Naoko Sato, Yutaka Kadoya, Koichiro Tanaka

IRMMW-THz 2010 - 35th International Conference on Infrared, Millimeter, and Terahertz Waves, Conference Guide　2010　Research paper (international conference proceedings)

Nonlinear THz Spectroscopy on the Dielectric Thin Films

Ikufumi Katayama, Hiroshi Aoki, Jun Takeda, Hiroshi Shimosato, Masaaki Ashida, Ryuhei Kinjo, Iwao Kawayama, Masayoshi Tonouchi, Masaya Nagai, Koichiro Tanaka

2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)　2010　Research paper (international conference proceedings)

Water Molecules Driven by Intense THz Pulses

Masaya Nagai, Koichiro Tanaka

35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ 2010)　2010　Research paper (international conference proceedings)

THz nonlinearity of water observed with intense THz pulses

Masaya Nagai, Koichiro Tanaka

2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)　2010　Research paper (international conference proceedings)

Enhancement of terahertz wave generation by cascaded chi((2)) processes in LiNbO3

Mukesh Jewariya, Masaya Nagai, Koichiro Tanaka

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　Vol. 26　No. 9　p. A101-A106　2009/09　Research paper (scientific journal)

Hydration structures of 2-butoxyethanol monomer and micelle in solution

Takashi Arikawa, Masaya Nagai, Koichiro Tanaka

Chemical Physics Letters　Vol. 477　No. 1-3　p. 95-101　2009/07　Research paper (scientific journal)

Broadband and high power terahertz pulse generation beyond excitation bandwidth limitation via chi((2)) cascaded processes in LiNbO3

Masaya Nagai, Mukesh Jewariya, Yuki Ichikawa, Hideyuki Ohtake, Toshiharu Sugiura, Yuzuru Uehara, Koichiro Tanaka

OPTICS EXPRESS　Vol. 17　No. 14　p. 11543-11549　2009/07　Research paper (scientific journal)

The intermolecular stretching vibration mode in water isotopes investigated with broadband terahertz time-domain spectroscopy

Hiroyuki Yada, Masaya Nagai, Koichiro Tanaka

CHEMICAL PHYSICS LETTERS　Vol. 473　No. 4-6　p. 279-283　2009/05　Research paper (scientific journal)

Hydration structure of 2-butoxyethanol monomer and micelle in solution

Takashi Arikawa, Masaya Nagai, Koichiro Tanaka

2009 34TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, VOLS 1 AND 2　p. 407-+　2009　Research paper (international conference proceedings)

Broadband and high power monocycle terahertz pulse generation by chi((2)) cascaded processes in LiNbO3

Mukesh Jewariya, Masaya Nagai, Yuki Ichikawa, Hideyuki Ohtake, Toshiharu Sugiura, Yuzuru Uehara, Koichiro Tanaka

2009 CONFERENCE ON LASERS AND ELECTRO-OPTICS AND QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2009), VOLS 1-5　p. 648-+　2009　Research paper (international conference proceedings)

Terahertz nonlinear transmission spectroscopy of amino-acid microcrystals

Mukesh Jewariya, Masaya Nagai, Koichiro Tanaka

2009 34TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, VOLS 1 AND 2　p. 396-398　2009　Research paper (international conference proceedings)

Large Amplitude anharmonic vibrations driven by monocycle intense THz pulse

Mukesh Jewariya, Masaya Nagai, Koichiro Tanaka

TERAHERTZ AND MID INFRARED RADIATION: BASIC RESEARCH AND PRACTICAL APPLICATIONS, WORKSHOP PROCEEDINGS　p. 9-10　2009　Research paper (international conference proceedings)

Terahertz pulse generation beyond excitation pulse limitation by chi((2)) cascaded processes

Masaya Nagai, Mukesh Jewariya, Yuki Ichikawa, Hideyuki Ohtake, Toshiharu Sugiura, Yuzuru Uehara, Koichiro Tanaka

2009 34TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES, VOLS 1 AND 2　p. 405-+　2009　Research paper (international conference proceedings)

Origin of the fast relaxation component of water and heavy water revealed by terahertz time-domain attenuated total reflection spectroscopy

Hiroyuki Yada, Masaya Nagai, Koichiro Tanaka

CHEMICAL PHYSICS LETTERS　Vol. 464　No. 4-6　p. 166-170　2008/10　Research paper (scientific journal)

Characterizing hydration state in solution using terahertz time-domain attenuated total reflection spectroscopy

Takashi Arikawa, Masaya Nagai, Koichiro Tanaka

CHEMICAL PHYSICS LETTERS　Vol. 457　No. 1-3　p. 12-17　2008/05　Research paper (scientific journal)

Resonant phase jump with enhanced electric field caused by surface phonon polariton in terahertz region

Takanori Okada, Masaya Nagai, Koichiro Tanaka

OPTICS EXPRESS　Vol. 16　No. 8　p. 5633-5641　2008/04　Research paper (scientific journal)

Evaluation of effective electric permittivity and magnetic permeability in metamaterial slabs by terahertz time-domain spectroscopy

Yosuke Minowa, Takashi Fujii, Masaya Nagai, Tetsuyuki Ochiai, Kazuaki Sakoda, Kazuyuki Hirao, Koichiro Tanaka

OPTICS EXPRESS　Vol. 16　No. 7　p. 4785-4796　2008/03　Research paper (scientific journal)

Evaluation of a terahertz wave spectrum and construction of a terahertz wave-sensing system using a Yb-doped fiber laser

Atsushi Syouji, Shingo Saito, Kiyomi Sakai, Masaya Nagai, Koichiro Tanaka, Hideyuki Ohtake, Toshiaki Bessho, Toshiharu Sugiura, Tomoya Hirosumi, Makoto Yoshida

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS　Vol. 24　No. 8　p. 2006-2012　2007/08　Research paper (scientific journal)

Terahertz attenuated total internal reflection spectroscopy for water and water solution

Koichiro Tanaka, Takashi Arikawa, Hiroyuki Yada, Masaya Nagai

Optics InfoBase Conference Papers　2007　Research paper (international conference proceedings)

Evaluation of Effective Electric Permittivity and Magnetic Permeability in Metamaterial Parallel Slab and Importance of the Skin Effect

Yosuke Minowa, Masaya Nagai, Koichiro Tanaka, Takashi Fujii, Kazuyuki Hirao

Photonic Metamaterials: From Random to Periodic 2007　2007　Research paper (international conference proceedings)

Terahertz pump-probe spectroscopy in LT-InGaAs thin film

Masaya Nagai, Koichiro Tanaka, Akihiro Takazato, Yutaka Kadoya

2007 JOINT 32ND INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, VOLS 1 AND 2　p. 225-+　2007　Research paper (international conference proceedings)

THz wave generation and detection system using similar to 1000 nm Yb-doped fiber laser

Atsushi Syouji, Shingo Saito, Kiyorni Sakai, Masaya Nagai, Koichiro Tanaka, Hideyuki Ohtake, Toshiaki Bessho, Toshiharu Sugiura, Tornoya Hirosurni, Makoto Yoshida

ULTRAFAST OPTICS V　Vol. 132　p. 217-+　2007　Research paper (international conference proceedings)

Dielectric Measurements for Powder-Shape Samples Using Terahertz Time-Domain Attenuated Total Reflection Technique

Hiroyuki Yada, Masaya Nagai, Koichiro Tanaka

2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5　p. 1748-1749　2007　Research paper (international conference proceedings)

Picosecond dynamics of water and heavy water investigated by using terahertz time-domain attenuated total reflection spectroscopy

Hiroyuki Yada, Masaya Nagai, Koichiro Tanaka

2007 JOINT 32ND INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, VOLS 1 AND 2　p. 647-648　2007　Research paper (international conference proceedings)

Destructive interference effect on surface plasmon resonance in terahertz attenuated total reflection

H Hirori, M Nagai, K Tanaka

OPTICS EXPRESS　Vol. 13　No. 26　p. 10801-10814　2005/12　Research paper (scientific journal)

Direct observation of the soft-mode dispersion in the incipient ferroelectric KTaO 3

Yuki Ichikawa, Masaya Nagai, Koichiro Tanaka

Physical Review B - Condensed Matter and Materials Physics　Vol. 71　No. 9　2005/03/01　Research paper (scientific journal)

Complex dielectric constant of amino-acid solution revealed by THz time-domain attenuated total-reflection technique

Takashi Arikawa, Kumiko Yamashita, Hikdeki Hirori, Masaya Nagai, Koichiro Tanaka

Optics InfoBase Conference Papers　2005　Research paper (international conference proceedings)

High sensitive detection of optical constants with phase shift in terahertz time-domain reflection spectroscopy

Masaya Nagai, Hiroyuki Yada, Takashi Arikawa, Hideki Hirori, Koichiro Tanaka

IQEC, International Quantum Electronics Conference Proceedings　Vol. 2005　p. 1653-1654　2005　Research paper (international conference proceedings)

Generation and detection of terahertz radiation by electro-optical process in GaAs using 1.56 μm fiber laser pulses

Masaya Nagai, Kolchiro Tanaka, Hideyuki Ohtake, Toshiaki Bessho, Toshiharu Sugiura, Tomoya Hirosumi, Makoto Yoshida

Applied Physics Letters　Vol. 85　No. 18　p. 3974-3976　2004/11/01　Research paper (scientific journal)

Attenuated Total Reflection Spectroscopy in Time Domain Using Terahertz Coherent Pulses

Hirori Hideki, Yamashita Kumiko, Nagai Masaya, Tanaka Koichiro

Jpn J Appl Phys　Vol. 43　No. 10　p. L1287-L1289　2004/10/01

Accurate determination of complex dielectric constants by terahertz time domain attenuated total reflection spectroscopy

Hideki Hirori, Takashi Arikawa, Masaya Nagai, Hideyuki Ohtake, Makoto Yoshida, Koichiro Tanaka

Conference Digest of the 2004 Joint 29th International Conference on Infrared and Millimeter Waves and 12th International Conference on Terahertz Electronics　p. 251-252　2004　Research paper (international conference proceedings)