Thermo-optic coefficients study in KGd(WO4)2 and KY(WO4)2 by a modified minimum deviation method.

Thermo-optic coefficients anisotropy was characterized in monoclinic potassium (rare-earth) double tungstates KGd(WO4)2 and KY(WO4)2 in the spectral range of 0.44-0.63 μm by a modified minimum deviation method.

Thermo-optic coefficients and thermal lensing in Nd-doped KGd(WO4)2 laser crystals.

We measured the thermo-optic coefficients dn/dT of anisotropic Nd:KGd(WO(4))(2) crystals at the wavelengths of 1.064 μm and 532 nm (300 K) by a beam deflection method. The values of dn/dT are determined to be dn(p)/dT = -16.