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Optics Letters

Optics Letters


  • Vol. 36, Iss. 20 — Oct. 15, 2011
  • pp: 4062–4064

Skew aberration: a form of polarization aberration

Garam Yun, Karlton Crabtree, and Russell A. Chipman  »View Author Affiliations

Optics Letters, Vol. 36, Issue 20, pp. 4062-4064 (2011)

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We define a new class of aberration, skew aberration, which is a component of polarization aberration. Skew aberration is an intrinsic rotation of polarization states due to the geometric transformation of local coordinates, independent of coatings and interface polarization. Skew aberration in a radially symmetric system has the form of a circular retardance tilt plus coma aberration. Skew aberration causes undesired polarization distribution in the exit pupil. We demonstrate statistics on skew aberration of 2383 optical systems described in Code V’s U.S. patent library [Code V Version 10.3 (Synopsys, 2011), pp. 22–24]; the mean skew aberration is 0.89 ° and the standard deviation is 1.37 ° . The maximum skew aberration found is 17.45 ° and the minimum is 11.33 ° . U.S. patent 2,896,506, which has ± 7.01 ° of skew aberration, is analyzed in detail. Skew aberration should be of concern in microlithography optics and other high NA and large field of view optical systems.

© 2011 Optical Society of America

OCIS Codes
(080.0080) Geometric optics : Geometric optics
(080.1010) Geometric optics : Aberrations (global)

ToC Category:
Physical Optics

Original Manuscript: August 16, 2011
Manuscript Accepted: September 16, 2011
Published: October 12, 2011

Garam Yun, Karlton Crabtree, and Russell A. Chipman, "Skew aberration: a form of polarization aberration," Opt. Lett. 36, 4062-4064 (2011)

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