Intramolecular vibrational activity and quantum beats in the Raman-induced optical Kerr effect of liquids under impulsive electric exciations

Huang, Tzuen-Hsi

doi:10.1016/0301-0104(92)87129-w

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Cited by 7 publications

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“…The nuclear motion can be separated into two categories, namely, intra-and inter-molecular motions. In the intramolecular motion, the nuclear resonance involves a normal vibration that gives rise to quantum interference (QI) [11,12] . The response function φ intra (t) can be expressed as [12] φ intra (t) = A Ω e −Γ Ω t sin Ωt ,…”

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confidence: 99%

Ultrafast third-order optical nonlinearities in DMSO

Kong¹,

Ao²,

Gao³

et al. 2012

中国光学快报

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The third-order optical nonlinearities of dimethyl sulfoxide (DMSO) are investigated using the optical Kerr effect (OKE) and Z-scan techniques with femtosecond pulses. We are able to fit the OKE signal theoretically by convolving the autocorrelation of the incident pulse intensity profile with the impulse responses of the samples, illustrating the instantaneous nonlinear response of DMSO. We verify that the purely electronic cloud distortion causes the observed signal for DMSO. The Z-scan technique is used to estimate the third-order susceptibility of DMSO, which is about a quarter of that for CS2 and mainly comes from the nonlinear refraction with an intensity of less than 140 GW/cm 2 .

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confidence: 99%