Research, growth, and optical properties of new borate-based NLO crystals for generation of visible and UV light

K. Xu; P. Loiseau; G. Aka

doi:10.1117/12.662950

17 April 2006 Research, growth, and optical properties of new borate-based NLO crystals for generation of visible and UV light

K. Xu, P. Loiseau, G. Aka

Author Affiliations +

Proceedings Volume 6190, Solid State Lasers and Amplifiers II; 61900H (2006) https://doi.org/10.1117/12.662950
Event: SPIE Photonics Europe, 2006, Strasbourg, France

Abstract

Single crystals of BaNaB₉O₁₅ (BaNaBO) and BaCaBO₃F (BCBF) have been grown by the Czochralski pulling method in air. These compands were investigated for non linear optical applications and were expected to exhibit an extended transparency window in the ultra-violet. BaNaBO crystallizes in the non-centrosymmetric space group R3C (Z=6)^[1] Cell parameters of BaNaBO are: a=11.1003(8) Å and c= 17.404(1) Å. The borate anionic network is characterised by a three-dimensional framework built up from [B₃O₇] rings^[1]. The other compound BCBF has a hexagonal structure with P-62m space group (Z=3)^[2], its cell parameters are a=9.0489(8) Å and c=4.3257(4) Å. Its basic structural unit is [BO₃]^[2] group. The transmission spectras of the two crystals are reported. The refractive indices were measured by the minimum deviation technique and fitted to the Sellmeier equations. Second harmonic generation (SHG) phase matching angle calculations are presented.

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K. Xu, P. Loiseau, and G. Aka "Research, growth, and optical properties of new borate-based NLO crystals for generation of visible and UV light", Proc. SPIE 6190, Solid State Lasers and Amplifiers II, 61900H (17 April 2006); https://doi.org/10.1117/12.662950

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