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在频率域研究了用喇曼增强非简并四波混频(RENFWM)测量喇曼模的横向弛豫时间,得到消背底的RENFWM光谱,对实验曲线进行拟合,获得苯和甲苯的振动模的横向弛豫时间分别为1.5ps和2ps。The transverse relaxation time measurement for Raman mode by Raman enhanced nonde-generate four wave mixing (RENFWM) has been made in the frequency domain. We get spectra of RENFWM that the nonresonant background is suppressed. The transverse relaxation time of Raman mode in benzene and methlybenzene is obtained as 1.5 ps and 2 ps respectively.
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