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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 49, Iss. 10 — Apr. 1, 2010
  • pp: 1964–1971

Generalized method for calculating astigmatism of the unit-magnification multipass system

Kexin Chen, Huaidong Yang, Liqun Sun, and Guofan Jin  »View Author Affiliations


Applied Optics, Vol. 49, Issue 10, pp. 1964-1971 (2010)
http://dx.doi.org/10.1364/AO.49.001964


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Abstract

A generalized method to accurately calculate astigmatism of the unit-magnification multipass system (UMS) is proposed. A practical coaxial optical transmission model is developed for the UMS. Astigmatism analysis is then made convenient by a 4 by 4 general transfer matrix. Astigmatism correction is significantly promoted, and hence further improvement in imaging quality can be expected. Good agreement between numerical simulations and Zemax ray tracing results verifies the effectiveness of this method. The resulted RMS spot size of this method is only 25% to 64% of other previous methods based on the golden section search for minimum astigmatism in real design cases. This method is helpful for the optical design of the UMS.

© 2010 Optical Society of America

OCIS Codes
(080.2720) Geometric optics : Mathematical methods (general)
(080.2730) Geometric optics : Matrix methods in paraxial optics
(080.2740) Geometric optics : Geometric optical design
(220.1000) Optical design and fabrication : Aberration compensation
(220.1010) Optical design and fabrication : Aberrations (global)

History
Original Manuscript: January 8, 2010
Revised Manuscript: March 9, 2010
Manuscript Accepted: March 9, 2010
Published: March 29, 2010

Citation
Kexin Chen, Huaidong Yang, Liqun Sun, and Guofan Jin, "Generalized method for calculating astigmatism of the unit-magnification multipass system," Appl. Opt. 49, 1964-1971 (2010)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-49-10-1964

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