ABSTRACT
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A number of polarization and birefringence users, also known as a polarization society, have shown remarkable development in the last few decades. Most of the recent advanced technologies are based on the polarization technology including birefringence [1-4]. Many new interesting topics such as liquid crystal (LC) displays, LC projectors, optical disks, and optical communications are proposed using the polarization effect. A birefringence measurement is one of the visualizing methods for internal conditions of materials. We can understand information on stress distribution and macromolecular orientation distribution inside materials from birefringence mapping.
