中国物理B ›› 2011, Vol. 20 ›› Issue (5): 54205-054205.doi: 10.1088/1674-1056/20/5/054205

• CLASSICAL AREAS OF PHENOMENOLOGY • 上一篇    下一篇

Surface second-harmonic generation based on periodically poled LiNbO3 nonlinear optical crystal

H. Nili-Ahmadabadi, A.R. Khorsandi   

  1. Department of Physics, Esfahan University, Hezar Jarib Street, 81746-73441 Esfahan, I.R. Iran
  • 收稿日期:2010-10-01 修回日期:2010-12-20 出版日期:2011-05-15 发布日期:2011-05-15

Surface second-harmonic generation based on periodically poled LiNbO3 nonlinear optical crystal

H. Nili-Ahmadabadi and A.R. Khorsandi   

  1. Department of Physics, Esfahan University, Hezar Jarib Street, 81746-73441 Esfahan, I.R. Iran
  • Received:2010-10-01 Revised:2010-12-20 Online:2011-05-15 Published:2011-05-15

摘要: We have generated a second-harmonic generation (SHG) of a Q-switched microchip Nd:YAG laser on the surface of a periodically poled LiNbO3 (PPLN) nonlinear crystal near the grazing incidence angle. Three individual SHG waves as transmitted homogeneous, inhomogeneous and reflected radiations have been generated and their intensities are measured and characterized within a desirable range of about 10 different incidence angles of the Nd:YAG laser as pump source on the PPLN surface. The basic of surface nonlinear radiation is also investigated and similar results are calculated and extracted from the theory. Comparison between calculated and measured data shows that they are in good agreement with each other.

Abstract: We have generated a second-harmonic generation (SHG) of a Q-switched microchip Nd:YAG laser on the surface of a periodically poled LiNbO3 (PPLN) nonlinear crystal near the grazing incidence angle. Three individual SHG waves as transmitted homogeneous, inhomogeneous and reflected radiations have been generated and their intensities are measured and characterized within a desirable range of about 10 different incidence angles of the Nd:YAG laser as pump source on the PPLN surface. The basic of surface nonlinear radiation is also investigated and similar results are calculated and extracted from the theory. Comparison between calculated and measured data shows that they are in good agreement with each other.

Key words: surface SHG, Nd:YAG laser, PPLN nonlinear crystal

中图分类号:  (Nonlinear optics)

  • 42.65.-k
42.55.Px (Semiconductor lasers; laser diodes) 42.55.Rz (Doped-insulator lasers and other solid state lasers)