中国物理B ›› 2007, Vol. 16 ›› Issue (1): 100-105.doi: 10.1088/1009-1963/16/1/018

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Diffraction of an ultrashort pulsed beam with arbitrary polarization state from a volume holographic grating in LiNbO3 crystals

王春花, 刘立人, 闫爱民, 周煜, 刘德安, 胡志娟   

  1. Information Laboratory, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:2005-11-18 修回日期:2006-07-24 出版日期:2007-02-01 发布日期:2007-02-01
  • 基金资助:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2002CCA03500), and the National Natural Science Foundation of China (Grant No 60177016).

Diffraction of an ultrashort pulsed beam with arbitrary polarization state from a volume holographic grating in LiNbO3 crystals

Wang Chun-Hua(王春花)†, Liu Li-Ren(刘立人), Yan Ai-Min(闫爱民), Zhou Yu(周煜), Liu De-An(刘德安), and Hu Zhi-Juan(胡志娟)   

  1. Information Laboratory, Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences, Shanghai 201800, China
  • Received:2005-11-18 Revised:2006-07-24 Online:2007-02-01 Published:2007-02-01
  • Supported by:
    Project supported by the State Key Development Program for Basic Research of China (Grant No 2002CCA03500), and the National Natural Science Foundation of China (Grant No 60177016).

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摘要： Based on a modified coupled wave theory of Kogelnik, we have studied the diffraction of an ultrashort pulsed beam with an arbitrary polarization state from a volume holographic grating in photorefractive LiNbO3 crystals. The results indicate that the diffracted intensity distributions in the spectral and temporal domains and the diffraction efficiency of the grating are both changed by the polarization state and spectral bandwidth of the input pulsed beam. A method is given of choosing the grating parameters and input conditions to obtain a large variation range of the spectral bandwidth of the diffracted pulsed beam with an appropriate diffraction efficiency. Our study presents a possibility of using a volume holographic grating recorded in anisotropic materials to shape a broadband ultrashort pulsed beam by modulating its polarization state.

Abstract: Based on a modified coupled wave theory of Kogelnik, we have studied the diffraction of an ultrashort pulsed beam with an arbitrary polarization state from a volume holographic grating in photorefractive LiNbO3 crystals. The results indicate that the diffracted intensity distributions in the spectral and temporal domains and the diffraction efficiency of the grating are both changed by the polarization state and spectral bandwidth of the input pulsed beam. A method is given of choosing the grating parameters and input conditions to obtain a large variation range of the spectral bandwidth of the diffracted pulsed beam with an appropriate diffraction efficiency. Our study presents a possibility of using a volume holographic grating recorded in anisotropic materials to shape a broadband ultrashort pulsed beam by modulating its polarization state.

Key words: diffraction optics, coupled wave theory, volume holographic grating, ultrashort pulsed beam

中图分类号:  (Holographic optical elements; holographic gratings)

  • 42.40.Eq
42.40.Lx (Diffraction efficiency, resolution, and other hologram characteristics) 42.40.Pa (Volume holograms) 42.65.Re (Ultrafast processes; optical pulse generation and pulse compression) 42.70.Ln (Holographic recording materials; optical storage media) 42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials)