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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 4 — Feb. 1, 2004
  • pp: 750–755

Polarization-based compensation of astigmatism

Dola Roy Chowdhury, Kallol Bhattacharya, Ajay K. Chakraborty, and Raja Ghosh  »View Author Affiliations


Applied Optics, Vol. 43, Issue 4, pp. 750-755 (2004)
http://dx.doi.org/10.1364/AO.43.000750


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Abstract

One approach to aberration compensation of an imaging system is to introduce a suitable phase mask at the aperture plane of an imaging system. We utilize this principle for the compensation of astigmatism. A suitable polarization mask used on the aperture plane together with a polarizer-retarder combination at the input of the imaging system provides the compensating polarization-induced phase steps at different quadrants of the apertures masked by different polarizers. The aberrant phase can be considerably compensated by the proper choice of a polarization mask and suitable selection of the polarization parameters involved. The results presented here bear out our theoretical expectation.

© 2004 Optical Society of America

OCIS Codes
(090.1000) Holography : Aberration compensation
(110.1220) Imaging systems : Apertures
(170.0110) Medical optics and biotechnology : Imaging systems
(230.5440) Optical devices : Polarization-selective devices

History
Original Manuscript: May 17, 2003
Revised Manuscript: October 21, 2003
Published: February 1, 2004

Citation
Dola Roy Chowdhury, Kallol Bhattacharya, Ajay K. Chakraborty, and Raja Ghosh, "Polarization-based compensation of astigmatism," Appl. Opt. 43, 750-755 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-4-750

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