J4 ›› 2009, Vol. 26 ›› Issue (6): 722-727.

• Nonlinear Optics • Previous Articles     Next Articles

Spatial solitons in biased two-photon photovoltaic photorefractive media

JI Xuan-Mang1, JIANG Qi-Chang1, LIU Jin-Song2   

  1. 1 Department of Physics and Electronic Engineering, Yuncheng University,Yuncheng ,044000;
    2 College of Optoelectronic Science and Engineering, Huanzhong University of Science and Technology,  WuHan 430074
  • Online:2009-11-03

Abstract:

Steady-state bright (dark) spatial solitons are predicted for biased two-photon photovoltaic photorefractive media, which are due to two-photon photorefractive effect . When the photovoltaic effect is negligible, these solitons are just like the two-photon screening solitons. If the applied field absent, these solitons degenerate into the two-photon photovoltaic solitons under the close-circuit condition. screening solitons and photovoltaic solitons throries can obtained by simplifying the universal theory under the appropriate conditions.

Key words: nonlinear optics, photorefractive material, two-photon photovoltaic photorefractive effect, spatial solitons