Browsing by Author "Luo, C. -W."

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GaSe1-xSx Crystals for Teraherz Frequency Range
(2009)
Atuchin, Victor V.
;
Andreev, Yury M.
;
Sarkisov, Sergei Yu.
;
Morozov, A. N.
;
Luo, C. -W.
GaSe1-xSx single crystals has been grown by Bridgman-Stockbarger technique. Structural quality has been evaluated with TEM observation. Terahertz time-domain spectroscopy has been applied for measurements of the frequency-dependent optical constant of doped GaSe crystals as a function of s-content.
Optical properties of nonlinear solid solution GaSe(1-x) S (x) (0 < x a parts per thousand currency signaEuro parts per thousand 0.4) crystals
(2008-10-01)
Ku, S. -A.
;
Luo, C. -W.
;
Lio, H. -L.
;
Wu, K. -H.
;
Juang, J. -Y.
Transmission spectra and phase matching conditions for second harmonic generation in GaSe(1-x) S (x) (0 < x a parts per thousand currency signaEuro parts per thousand 0.4) solid solution crystals are experimentally investigated. An algorithm is suggested and dispersion equations are derived that allow the phase matching angles describing best the available experimental data to be estimated as a function of the mixing ratio x.
Optical properties of nonlinear solid solution GaSe1-x S (x) (0 < x a parts per thousand currency signaEuro parts per thousand 0.4) crystals
(2008-10-01)
Ku, S. -A.
;
Luo, C. -W.
;
Lio, H. -L.
;
Wu, K. -H.
;
Juang, J. -Y.
Transmission spectra and phase matching conditions for second harmonic generation in GaSe1-x S (x) (0 < x a parts per thousand currency signaEuro parts per thousand 0.4) solid solution crystals are experimentally investigated. An algorithm is suggested and dispersion equations are derived that allow the phase matching angles describing best the available experimental data to be estimated as a function of the mixing ratio x.
Single-shot detection of mid-infrared spectra by chirped-pulse upconversion with four-wave difference frequency generation in gases
(2013-07-29)
Nomura, Y.
;
Wang, Y. -T.
;
Kozai, T.
;
Shirai, H.
;
Yabushita, A.
Single-shot detection of ultrabroadband mid-infrared spectra was demonstrated by using chirped-pulse upconversion technique with four-wave difference frequency generation in gases. Thanks to the low dispersion of the gas media, the bandwidth of the phase matching condition of the upconversion process becomes very broad and the entire mid-infrared spectrum spanning from 200 to 5500 cm(-1) was upconverted by using a 10 ps chirped pulse to visible wavelength radiation, which was detected with a conventional visible dispersive spectrometer. This method was demonstrated by the successful measurement of infrared absorption spectra of organic polymer films. (C) 2013 Optical Society of America
Study of GaSe1-xSx Properties for Terahertz Applications
(2009)
Sarkisov, S. Yu.
;
Andreev, Yu. M.
;
Atuchin, V. V.
;
Morozov, A. N.
;
Kazakov, A. V.
For prospective nonlinear crystals GaSe1-xSx experimental study of second harmonic generation processes of Er3+:YSGG-, CO2- and CO-lasers has been performed, control experiment on difference frequency generation of two lines Of CO2-laser has been realized, the transmission spectra and dispersion of complex refractive indices in terahertz range have been measured.