Journal of Crystal Growth, Vol.292, No.2, 468-471, 2006
Flux growth and optical properties of Na3La9O3(BO3)(8) crystals
Na3La9O3(BO3)(8) (NLBO) crystals were grown by the top-seeded solution growth (TSSG) method from three new fluxes: Na2O-B2O3-Li2O, Na2O-B2O3-NaF-LiF and Na2O-B2O3-NaF, respectively. The volatility was investigated. The results showed that the Na2O-B2O3-NaF flux is more suitable than others for growing NLBO crystals. The suitable molar ratio for Na3La9O3(BO3)(8), Na2CO3, H3BO3 and NaF is 1.0:(7.5 similar to 5.0):(6.5 similar to 5.0):(8.8 similar to 35.0) with the growth temperature at 920 similar to 980 degrees C. NLBO crystal size was up to 35 x 22 x 10 mm(3). The shortest SHG wavelengths for type-I and type-II phase-matching (PM) are 288 nm and 395 nm, respectively. (c) 2006 Published by Elsevier B.V.