Crystal Characterization system

The z-scan technique is used to measure the non-linear refractive index (n2) and the non-linear absorption coefficient (α) via the "closed" and "open" methods, respectively. Third-order nonlinear optical susceptibility χ (3) can be calculated.

Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. It helps to analyze the quality of the crystals.

Conoscopic interference patterns are used to explore the optical properties of single crystals like uniaxial or Bi-axial and the optic axis. The observed pattern is decomposed into isogyres and isochromates in an optical single crystal. 

The Brewster angle experiment is an optical experiment used to measure the linear refractive index of a single crystal.