中国物理B ›› 1996, Vol. 5 ›› Issue (3): 201-206.doi: 10.1088/1004-423X/5/3/006

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TRANSVERSE MODULATION OF BEAM PROFILES IN PUMP-PROBE CONFIGURATIONS WITH BaTiO3:Ce

谢平, 戴建华, 王鹏业，张洪钧   

  1. Optical Physics Laboratory, Institute of Physics, Academia Sinica, Beijing 100080, China
  • 收稿日期:1995-05-02 出版日期:1996-03-20 发布日期:1996-03-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China and by the Nonlinear Science Project of China.

TRANSVERSE MODULATION OF BEAM PROFILES IN PUMP-PROBE CONFIGURATIONS WITH BaTiO3:Ce

XIE PING (谢平), DAI JIAN-HUA (戴建华), WANG PENG-YE (王鹏业), ZHANG HONG-JUN(张洪钧)   

  1. Optical Physics Laboratory, Institute of Physics, Academia Sinica, Beijing 100080, China
  • Received:1995-05-02 Online:1996-03-20 Published:1996-03-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China and by the Nonlinear Science Project of China.

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摘要： Transverse spatial modulation of beam profiles for a probe beam counterpropagating to a pump beam in a 45°-cut BaTiO3:Ce crystal with an externally applied electric field is studied numerically studied. For the case that the direct ion of the external field makes an angle of 45° with the c-axis of the crystal, the probe beam, which propagates in the direction perpendicular to the external field and has a waist wider than that of the pump beam, can acquire deep spatial modulation. In contrast, the pump beam shows no spatial modulation but diffracts only. For the case the external field is directed opposite to the direction mentioned above, the probe beam shows much stronger spatial modulation as compared to the pump.

Abstract: Transverse spatial modulation of beam profiles for a probe beam counterpropagating to a pump beam in a 45°-cut BaTiO3:Ce crystal with an externally applied electric field is studied numerically studied. For the case that the direct ion of the external field makes an angle of 45° with the c-axis of the crystal, the probe beam, which propagates in the direction perpendicular to the external field and has a waist wider than that of the pump beam, can acquire deep spatial modulation. In contrast, the pump beam shows no spatial modulation but diffracts only. For the case the external field is directed opposite to the direction mentioned above, the probe beam shows much stronger spatial modulation as compared to the pump.

中图分类号:  (Ultrafast processes; optical pulse generation and pulse compression)

  • 42.65.Re
42.65.Hw (Phase conjugation; photorefractive and Kerr effects) 42.70.Nq (Other nonlinear optical materials; photorefractive and semiconductor materials)