RAMAN SCATTERING OF POLARITONS IN A KTi OPO4 CRYSTAL
XU Liwen
Institute of Physics, Academia Sinica, Beijing 100080
RAMAN SCATTERING OF POLARITONS IN A KTi OPO4 CRYSTAL
XU Liwen
Institute of Physics, Academia Sinica, Beijing 100080
关键词 ：
78.30.-j
Abstract ： The spontaneous Raman scattering of polaritons in the biazial orthorhombic KTi OPO4 (KTP) crystal was investigated with a cw Ar+ laser. The dispersion branches of polaritons associated with A1 -phonons have been calculated from spectral data for different wave vector directions from near-forward scattering experiments. The angular dependence of Raman scattering efficiency (RSE) in 60-300cm-1 and 500-800cm-1 regions are shown schematically. The collective interaction of multi-mode lattice vibrations and an “overall” effect are discussed phenomenally.
Key words ：
78.30.-j
出版日期: 1990-10-01
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1990, Vol. 7 
