Simple method of optimizing second-harmonic generation under imperfect phase-mismatching conditions caused by group-velocity mismatch and group-velocity dispersion

2014 
A simple method of thickness optimization of a nonlinear optical crystal used for second-harmonic generation involving group-velocity mismatching and group-velocity dispersion is discussed on the basis of the feature parameter ΔS. An approximate analysis formula for thickness with respect to the maximum second-harmonic intensity is obtained, which is applicable to the optimization of second-harmonic generation.
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