中国物理B ›› 2000, Vol. 9 ›› Issue (8): 599-605.doi: 10.1088/1009-1963/9/8/009

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

PHASE FLUCTUATIONS ON RAMAN-ENHANCED NONDEGENERATE FOUR-WAVE MIXING

张彦鹏1, 吴洪才1, 王鹏飞1, 李创社1, 傅盘铭2   

  1. (1)Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; (2)Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:1999-12-21 修回日期:2000-02-21 出版日期:2005-06-10 发布日期:2005-06-10
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 69978019).

PHASE FLUCTUATIONS ON RAMAN-ENHANCED NONDEGENERATE FOUR-WAVE MIXING

Zhang Yan-peng (张彦鹏)a, Wu Hong-cai (吴洪才)a, Wang Peng-fei (王鹏飞)a, Li Chuang-she (李创社)a, Fu Pan-ming (傅盘铭)b   

  1. a Department of Electronic Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China; b Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:1999-12-21 Revised:2000-02-21 Online:2005-06-10 Published:2005-06-10
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 69978019).

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摘要： We have employed phase-diffusion model to study the effects of laser field correlation on the Raman-enhanced nondegenerate four-wave mixing (RENFWM). The different roles of the field fluctuations have been pointed out. A time-delayed method has been proposed to suppress the thermal background. An enhancement of the ratio between the resonant and nonresonant RENFWM signal intensities was found as the time delay is increased when the laser has broadband linewidth. When the lasers have Gaussian line shape, we also present a second-order coherence function theory to elucidate the temporal asymmetry behavior of the RENFWM.

Abstract: We have employed phase-diffusion model to study the effects of laser field correlation on the Raman-enhanced nondegenerate four-wave mixing (RENFWM). The different roles of the field fluctuations have been pointed out. A time-delayed method has been proposed to suppress the thermal background. An enhancement of the ratio between the resonant and nonresonant RENFWM signal intensities was found as the time delay is increased when the laser has broadband linewidth. When the lasers have Gaussian line shape, we also present a second-order coherence function theory to elucidate the temporal asymmetry behavior of the RENFWM.

Key words: phase fluctuations, raman-enhancedment, four-wave mixing

中图分类号:  (Stimulated Raman scattering; CARS)

  • 42.65.Dr
42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 42.72.-g (Optical sources and standards)