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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 27, Iss. 5 — May. 1, 2010
  • pp: 1060–1068

Attenuation characterization of multiple combinations of imperfect polarizers

Chong Huang, Shuang Zhao, Haiqing Chen, and Zhaoshu Liao  »View Author Affiliations

JOSA A, Vol. 27, Issue 5, pp. 1060-1068 (2010)

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Malus’s law, when used to calculate the attenuation ratio of the combination of two imperfect polarizers (two-CIP), will introduce an error, especially near the crossed-axis orientation. In this paper, first, the Jones matrix of the imperfect polarizer is deduced and an exact algorithm of the attenuation ratio of the two-CIP is proposed as well as its monotonic attenuation interval. Experimental results confirm that our deduced expression is more accurate than Malus’s law. Then based on this algorithm, an attenuation-ratio expression of the combination of three imperfect polarizers (three-CIP) is presented. In this three-CIP model, it is found that when the electric field amplitude ratio of the imperfect polarizer is ϵ, the attenuation ratio can change from 1 to ϵ 4 monotonically in a general model when P 1 and P 3 are rotated and P 2 is fixed, which is proved by experiment. Finally, it is deduced that the combination of n imperfect polarizers (n-CIP) can obtain a minimum attenuation ratio of ϵ 2 ( n 1 ) , which indicates the number of imperfect polarizers needed to achieve the required attenuation ratio.

© 2010 Optical Society of America

OCIS Codes
(230.4110) Optical devices : Modulators
(260.5430) Physical optics : Polarization
(250.4745) Optoelectronics : Optical processing devices

ToC Category:
Physical Optics

Original Manuscript: November 30, 2009
Revised Manuscript: February 22, 2010
Manuscript Accepted: March 1, 2010
Published: April 14, 2010

Chong Huang, Shuang Zhao, Haiqing Chen, and Zhaoshu Liao, "Attenuation characterization of multiple combinations of imperfect polarizers," J. Opt. Soc. Am. A 27, 1060-1068 (2010)

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