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LASER-INDUCED DAMAGE IN LiNbO3:Fe

WU ZHONG-KANG, ZHANG JIA-MIN, LIU SI-MIN, WANG HUA-FU, ZHANG GUANG-YIN, LU YONG-BIN, XU LIANG-YING, XU YU-HENG
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  • Received Date:  17 February 1986
  • Published Online:  20 March 2005

LASER-INDUCED DAMAGE IN LiNbO3:Fe

  • 1. (1)哈尔滨工业大学化学系; (2)南开大学物理系; (3)中国科学院上海硅酸盐研究所

Abstract: We have investigated the surface damage induced by visible laser in LiNbO3:Fe. The laser damage tracks (glide lines and microcracks) and microdomains are produced at +c side of the periphery of light-illuminated regions. These microdomains arise at laser damage tracks and at cylindrical grooves on the surface of sample. We also found that these damage defects in LN:Fe can be decorated by space-charges due to photovoltaic effect and they are directly observable between crossed polarizers. Role of the cavity field, the electrostatic repulsive force at the doma-in boundary and self-enhanced diffraction light induced by physical imperfection on laser-induced surface damage are discussed.

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