Efficient harmonic generation from 532 to 266 nm in ADP and KD*P

Abstract
Second harmonic generation of mode‐locked pulses in ADP and KD*P from 532 to 266 nm with 85% conversion is reported. Two‐photon absorption coefficients are measured for the two materials and found to be relatively unimportant in the limitation of harmonic conversion compared to the effects of phase mismatch and dispersion.