R. Dabu et al., ESTIMATION OF THE EFFICIENCY OF HARMONIC-GENERATION IN NONLINEAR CRYSTALS WITH 1064 NM GAUSSIAN LASER-PULSES, Optica Applicata, 26(3), 1996, pp. 171-183
We analyse optical parameters related to the generation of the harmoni
cs of Nd:YAG laser radiation in different nonlinear crystals (KTP, LBO
, KDP, ADP). In the case of non-focused Gaussian laser pulses, under t
he depleted pump assumption, simple formulae for the calculus of the s
econd harmonic generation (SHG) efficiency are deduced. The experiment
ally measured angular acceptance width and SHG efficiency are compared
with the theoretically calculated values.