Role of Diffusive, Photovoltaic, and Thermal Effects in Beam Fanning in LiNbO3
Journal of the Optical Society of America B
We analyze the steady-state (Gaussian) beam fanning in LiNbO3 from the nonlinearly coupled Kukhtarev equations by including both diffusive and photovoltaic effects and by adding the thermal effect in the calculation. There is good agreement between theory and experiment. The results show a symmetric beam-fanning pattern whose size depends on the beam waist and the power. Possible applications of our results in nondestructive testing of material parameters and optical limiting are discussed.
Copyright © 1994, Optical Society of America
Optical Society of America
Liu, Jaw-Jueh; Banerjee, Partha P.; and Song, Q. W., "Role of Diffusive, Photovoltaic, and Thermal Effects in Beam Fanning in LiNbO3" (1994). Electrical and Computer Engineering Faculty Publications. 183.