Average second-harmonic power at 5.3 μm exceeding 0.75 W with a 17% power conversion efficiency has been obtained by pumping a CdGeAs2 crystal, cooled to near 77 K, with a Q-switched CO2 laser. Average and peak conversion efficiencies of 21 and 30%, respectively, were achieved at a pulse rate of 1.5 kHz. In cw operation the crystal gave a second-harmonic output of 73 mW with a conversion efficiency near 0.5%.
No takes yet. Share an insight, caveat, or question.
Menyuk et al. (1976) studied this question.
Synapse has enriched 4 closely related papers on similar clinical questions. Consider them for comparative context: