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Journal of Electromagnetic Waves and Applications Volume 26, 2012 - Issue 11-12
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Articles

Efficient polarization beam splitter based on an indefinite medium

J. Sun State Kay Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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L. Liu State Kay Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
,
G. Dong State Kay Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
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J. Zhou State Kay Lab of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing, 100084, ChinaCorrespondence[email protected]
Pages 1423-1431 | Received 22 Mar 2012, Accepted 23 Apr 2012, Published online: 10 Jul 2012
 
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Abstract

We propose a design of a highly litter (polarization beam splitter [PBS]) based on an indefinite medium. Due to the strong anisotropy, the splitting angle in the indefinite medium is controlled by the orientation angle and can reach to 90° which is much larger than that in a birefringence crystal (BC). Based on this property, a thin indefinite medium film can dramatically enlarge the walk-off distance between two light paths, making the PBS much more efficient and tunable. With the indefinite medium, this design may also inspire and prompt the improvement of the BC optical devices, such as an interferometer system.

Acknowledgment

This work is supported by the National Natural Science Foundation of China under Grant Nos. 90922025, 51032003, 50921061, 51102148, and 10774087.

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