Abstract
Yttrium aluminum borate (YAB) is a potential candidate for UV applications especially at 266 nm. Many flux can be used to growth YAB: Li2O-B2O3, Li2O-B2O3-Al2O3, Li2WO4-B2O3. Here the flux La2O3-B2O3 is presented. Several undoped and Yb doped single crystals were grown. Physical parameters such as: thermal coefficients, absorption coefficent, refractive index and phase matching angles were determined. Moreover 14 % conversion efficiency from 532 to 266 nm were obtained using a YAB single crystal of 3 mm length.
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