I.C. Khoo, B.D. Guenther, Min-Yi Shih, P. Chen, and W.V. Wood, Electrical Engin. Dept., Penn. State Univ., University Park, PA.
To date, liquid crystals remain an important electro-optics material because of their broadband birefringence. They possess a sizable birefringence, Δn ~ 0.3 spanning the visible to IR spectral regime. Because of their easy susceptibility to optical fields, they are also well known for their nonlinear optical properties associated with laser induced director axis reorientation effects.
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