Characterization of an anisotropic film

Optical anisotropy of a material means that the refractive index depends on the propagation direction of light. The anisotropy is caused by a net macroscopic orientation of the microscopic constituents, e.g. molecules or crystal domains of the anisotropic material. Anisotropy appears in many thin polymer films, liquid crystals, lightemitting organic devices (OLEDs), and non linear optical materials. These thin anisotropic films appear structured as a matrix in many different types of displays.

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