Broadband frequency doubling in unpoled SBN crystals in the thermal focusing regime
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We study experimentally broadband noncollinear second-harmonic generation in unpoled Strontium Barium Niobate crystals. We show the e®ects of thermal self-focusing on the parametric conversion, including spatial localization of the second-harmonic, increased e±ciency, and spectral broadening. © 2006 Optical Society of America.
author list (cited authors)
Fischer, R., Saltiel, S. M., Neshev, D. N., Krolikowski, W., Kivshar, Y. S., & IEEE, ..