Thermo-optical properties of uniaxial NaT(XO4)2 laser host crystals (where T = Y, La, Gd or Bi, and X = W or Mo)

Thermo-optic coefficients d n o /d T and d n e /d T were measured in tetragonal double tungstate and double molybdate crystals NaT(XO 4 ) 2 (where T  =  Y , La, Gd or Bi and X  =  W or Mo) by a laser beam deviation method in the spectral range 0.4–1.1 μm. Thermal expansion coefficients in the direct...

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