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학술대회 Raman Scattering and Terahertz-Wave Parametric Generation with Nonlinear Optical Crystal MgO : LiNbO3
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백문철, 곽민환, 김성일, 류한철, 강승범, 정세영, 최상국, 강대원, 강광용, 이승환, 유윤식
International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) 2009, pp.1-2
09MB1400, THz파 발진 변환 검출기 및 신호원, 강광용
Polariton dispersion and THz-wave generation in MgO:LiNbO3 single crystal have been investigated by using Raman scattering and THz parametric generation system. The polariton dispersion curve was obtained on the basis of A1(z) mode of Raman scattering experiment. Wavelengths of the idler beam and the THz-wave were calculated using the phase matching condition with the dispersion curve. We have made a TPG system and directly measured the wavelength of the idler beam. The range of the phase matching angle in the TPG system was 0.35~0.80째, and the frequency of the THz-wave corresponding to the pump and idler beam was measured to be in the range of 0.95~2.30THz. They agreed well with those calculated by the polariton dispersion curve. © 2009 IEEE.
KSP 제안 키워드
Generation system, Raman scattering(SERS), Scattering experiments, Single crystal, Terahertz wave, Wave generation, dispersion curve, matching condition, nonlinear optical crystal, parametric generation, phase matching