We investigated cw intra-cavity third-harmonic generation (THG), where both the second- and third-harmonic NLO processes are type-I. The concept and results from a prototype with output of 28mW at 307nm are presented here.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon