Efficient third-harmonic generation in a thin nanocrystalline film of ZnO
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The nonlinear optical conversion in zinc oxide (ZnO) thin films was analyzed. The sample was grown on a thin fused silica substrate by pulsed-laser deposition. Very high conversion efficiency to the third-harmonic radiation was obtained for an unamplified femtosecond Cr 4+: forsterite laser. The results show that the third harmonic generation of ultrashort pulses with the efficiency of the order of percent was generated.
author list (cited authors)
Petrov, G. I., Shcheslavskiy, V., Yakovlev, V. V., Ozerov, I., Chelnokov, E., & Marine, W.