中国物理B ›› 2000, Vol. 9 ›› Issue (12): 905-909.doi: 10.1088/1009-1963/9/12/005

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RAMAN-ENHANCED POLARIZATION BEATS WITH PHASE-CONJUGATION GEOMETRY

张彦鹏, 侯洵, 卢克清, 吴洪才   

  1. Department of electronic science and technology, Xi'an Jiaotong University, Xi'an 710049, China
  • 收稿日期:1999-04-27 修回日期:1999-07-01 出版日期:2000-12-15 发布日期:2005-06-10
  • 基金资助:
    Supported by the National Natural Science Foundation of China (Grant No. 69978019).

RAMAN-ENHANCED POLARIZATION BEATS WITH PHASE-CONJUGATION GEOMETRY

Zhang Yan-peng (张彦鹏), Hou Xun (侯洵), Lu Ke-qing (卢克清), Wu Hong-cai (吴洪才)   

  1. Department of electronic science and technology, Xi'an Jiaotong University, Xi'an 710049, China
  • Received:1999-04-27 Revised:1999-07-01 Online:2000-12-15 Published:2005-06-10
  • Supported by:
    Supported by the National Natural Science Foundation of China (Grant No. 69978019).

摘要: The Raman-enhanced polarization beats (REPB) with phase-conjugation geometry in carbon disulfide are investigated using chaotic and phase-diffusion models. The overall accuracy of using REPB to measure the resonant frequency of Raman-active vibrational mode is determined by the relaxation rates of the Raman mode and the molecular-reorientational grating. Different stochastic models of the laser field only affect the sixth- and fourth-order coherence function. The difference between the REPB and the fourth-order coherence on ultrafast modulation spectroscopy is discussed as well from a physical viewpoint.

Abstract: The Raman-enhanced polarization beats (REPB) with phase-conjugation geometry in carbon disulfide are investigated using chaotic and phase-diffusion models. The overall accuracy of using REPB to measure the resonant frequency of Raman-active vibrational mode is determined by the relaxation rates of the Raman mode and the molecular-reorientational grating. Different stochastic models of the laser field only affect the sixth- and fourth-order coherence function. The difference between the REPB and the fourth-order coherence on ultrafast modulation spectroscopy is discussed as well from a physical viewpoint.

Key words: Raman-enhanced Polarization Beat, Sixth-order coherence, Phase and amplitude fluctuations

中图分类号: 

  • 42.50.Ar
42.50.Md (Optical transient phenomena: quantum beats, photon echo, free-induction decay, dephasings and revivals, optical nutation, and self-induced transparency) 42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.65.Sf (Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics)