Study of a bi-axial (KTP) crystal using Double Stokes Mueller Polarimetry

In this paper, we report the significance of double Stokes–Mueller polarimetry (DSMP) technique, to characterize a large size (3×3×5mm) Potassium titanyl phosphate (KTP) crystal. The crystal undergoes second harmonic generation with type II phase matching. study standard KTP using DSMP technique helps validate efficiency technique. We were able extract crystal’s Mueller matrix, relative contribution susceptibility tensor components, difference between etc. could determine axes orientation optical which was not possible through single X-Ray diffraction for such both optic and crystallographic are same. Axes direction determined from polarization microscope measurements Laue on is compared those obtained measurements.