Ultraviolet generation in periodically poled Lithium Tantalate waveguides
- Autori: Busacca, A.; D'Asaro, E.; Pasquazi, A.; Stivala, S.; Assanto, G.
- Anno di pubblicazione: 2008
- Tipologia: Articolo in rivista
- OA Link: http://hdl.handle.net/10447/2020
We demonstrate ultraviolet generation in lithium tantalate channel waveguides for frequency doubling via quasi-phase-matching. The samples, proton exchanged and nanostructured by electric-field assisted surface periodic poling with domains as deep as 40 μm, yield continuous wave light at 365.4 nm with conversion efficiencies larger than 7.5% W-1 cm-2.