Nonlinear Computer-Generated Optical Holograms in Lithium Niobate Crystal by Femtosecond Laser Micromachining

摘要

An efficient nonlinear computer-generated optical h olograms technique has been demonstrated in lithium niobate crystal, which fabricated by femtosecond laser pulses. The birefringence progress is used to provide the longitudinal phase matching of the wave vectors.