A polarized heterodyne ellipsometer to characterize TN-LC by elliptical parameters of polarization state is proposed. The twist angle and untwisted phase retardation can be measured precisely that TN-LC is verified as an elliptical retarder properly.
© 2005 Optical Society of America
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.2130) Instrumentation, measurement, and metrology : Ellipsometry and polarimetry
(160.0160) Materials : Materials
(160.3710) Materials : Liquid crystals
C. Tsai, K. Liao, C. Chou, C. Han, and Y. Chao, "TN-LC Cells as an Elliptical Phase Retarder by Heterodyne Interferometric Ellipsometry," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2005), paper JThE7.
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