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期刊论文
Attosecond sum-frequency Raman-enhanced polarization beating by use of twin phase-sensitive color locking noisy light beams
J. Opt. Soc. Am. B/Vol. 22, No.3/March(2005),-0001,():
Based on three stochastic models, the subtle, Markovian field-correlation effects have been investigated in homodyne-detected attosecond sum-frequency Raman-enhanced polarization beating (REPB) and heterodynedetected femtosecond difference-frequency REPB. A The different roles of the amplitude fluctuations and the phase fluctuations have been pointed out in both time and frequency domains. AAnalytic closed forms of the sixth-order and fourth-order Markovian stochastic correlations are characterized for homodyne (quadratic) and heterodyne (linear) detection, respectively. A The attosecond sum-frequency REPB signal shows resonant- nonresonant cross correlation, asymmetric temporal behavior, and drastic difference for three Markovian stochastic fields, and the autocorrelation of REPB exhibits hybrid-radiation-matter-detuning-terahertz damping oscillation. A The phase-diffusion model predicts a damping oscillation of the signal around a constant value in the narrowband case. A The heterodyne-detected signal of REPB potentially offers rich dynamic information about the homogeneous, broadening, material phase of the third-order nonlinear susceptibility.
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