Pribory i Metody Izmerenij (Apr 2015)

THERMOOPTIC COEFFICIENTS MEASUREMENTS BY A LASER BEAM DEVIATION METHOD FOR THE MEDIUM WITH LINEAR THERMAL GRADIENT

  • P. A. Loiko,
  • K. V. Yumashev,
  • N. V. Kuleshov,
  • A. A. Pavlyuk

Journal volume & issue
Vol. 0, no. 1
pp. 70 – 77

Abstract

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The experimental setup for thermooptic coefficients dn/dT measurements by a laser beam deviation method for the medium with linear thermal gradient was developed. By means of this approach, the dispersion of the dn/dT values in the optically biaxial potassium gadolinium tungstate crystal KGd(WO4)2 was investigated in the 0,4–1,06 μm spectral range for light polarized along the principal directions in the crystal.