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Article Dans Une Revue Optical Materials Année : 2009

Visible and UV effective non-linear optical coefficients of β-BaB2O4 as function of the growth technique

Résumé

We report second and fourth harmonic generation measurements in β-BaB2O4 single crystals (β-BBO) cut in the type I phase matching direction for the conversions from 1064 to 532 nm and from 532 to 266 nm. The absolute values of the effective non-linear optical coefficients deff are determined by measuring the conversion efficiency towards the visible and the UV. Crystals grown by the Czochralski method (directly pulled from a supercooled pure melt) are compared with crystals produced by the usual high temperature top seeded solution growth method. No difference in the effective non-linear optical coefficients was observed for the conversion from 1064 to 532 nm. In contrast, a systematically slightly higher deff value of crystal grown by the Czochralski method is obtained for the conversion from 532 to 266 nm.
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hal-00333078 , version 1 (15-08-2022)

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Paternité - Pas d'utilisation commerciale

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Régine Maillard, Alain Maillard, Katalin Polgár. Visible and UV effective non-linear optical coefficients of β-BaB2O4 as function of the growth technique. Optical Materials, 2009, 31 (6), pp.899-901. ⟨10.1016/j.optmat.2008.10.043⟩. ⟨hal-00333078⟩
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