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Dr. Alex Quema
My research interests include: Photonics, Opto-Electronics, Lasers, Terahertz Radiation, Magneto-optics, Vacuum-ultra-violet


Journal Articles

Teflon photonic crystal fiber as terahertz waveguide
Masahiro Goto, Alex Quema, Hiroshi Takahashi, Shingo Ono and Nobuhiko Sarukura
Japanese Journal of Applied Physics 43, L317, 2004


Identification of potential estrogenic environmental pollutants by terahertz transmission spectroscopy
Alex Quema, Hiroshi Takahashi, Masahiro Sakai, Masahiro Goto, Shingo Ono, Nobuhiko Sarukura, Ryu Shioda and Norihide Yamada
Japanese Journal of Applied Physics 42, L932, 2003


Excitation fluence dependence of terahertz radiation mechanism from femtosecond-laser-irradiated InAs under magnetic field
Hiroshi Takahashi, Alex Quema, Ryoichiro Yoshioka, Shingo Ono and Nobuhiko Sarukura
Applied Physics Letters 83, 1068, 2003


Terahertz radiation mechanism from femtosecond-laser-irradiated InAs (100) surface
Hiroshi Takahashi, Alex Quema, Masahiro Goto, Shingo Ono and Nobuhiko Sarukura
Japanese Journal of Applied Physics 42, L1259, 2003


Magnetic-field-induced enhancement of terahertz radiation power from femtosecond-laser-irradiated InAs up to 27T
Hiroshi Takahashi, Yuji Suzuki, Alex Quema, Masahiro Sakai, Takayuki Yano, Shingo Ono, Nobuhiko Sarukura, Masato Hozomizu, Gen Nishijima and Kazuo Watanabe
Japanese Journal of Applied Physics 42, L532, 2003


Terahertz-time domain spectroscopic measurement of moderately-doped silicon using InAs emitter under magnetic field
Alex Quema, Masataka Migita, Shigeki Nashima and Masanori Hangyo
Japanese Journal of Applied Physics 40, 867, 2001



Conferences

Development of future all-solid-state, ultraviolet, terawatt laser system using Ce:LiCAF as a gain medium
Alex Quema, Yuji Suzuki, Shingo Ono and Nobuhiko Sarukura
5th Pacific Rim Conference on Lasers and Electro-Optics (CLEO/PAcific Rim 2003), Taipei, Taiwan, December 2003

Excitation fluence dependence of THz-radiation from femtosecond-laser-irradiated InAs under magnetic field
Alex Quema, Hiroshi Takahashi, Shingo Ono and Nobuhiko Sarukura
28th International Conference on Infrared and Millimeter Waves (IRMMW 2003), Otsu, Japan, October 2003

Terahertz spectroscopy of various naphthols
Alex Quema, Masahiro Goto, Shingo Ono and Nobuhiko Sarukura
11th International Conference on Terahertz Electronics (THz 2003), Sendai, Japan, September 2003

Identification of various hydroxynapthalenes using terahertz spectroscopy
Alex Quema, Hiroshi Takahashi, Masahiro Goto, Shingo Ono and Nobuhiko Sarukura
Ultrafast Optics IV (UFO 2003), Vienna, Austria, July 2003

Magneto-optical effects of free carriers in semiconductors studied by terahertz-time domain spectroscopy (THz-TDS)
Alex Quema, Shigeki Nashima, Osamu Morikawa and Masanori Hangyo
27th International Conference on Infrared and Millimeter Waves (IRMMW 2002), California, U.S.A., September 2002



Dr. Alex Quema
joined January 30, 2004

6 journals, 5 conferences, 2 societies, 1 award