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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 20 — Oct. 2, 2006
  • pp: 9103–9112

Dynamic compensation of chromatic aberration in a programmable diffractive lens

María S. Millán, Joaquín Otón, and Elisabet Pérez-Cabré  »View Author Affiliations


Optics Express, Vol. 14, Issue 20, pp. 9103-9112 (2006)
http://dx.doi.org/10.1364/OE.14.009103


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Abstract

A proposal to dynamically compensate chromatic aberration of a programmable phase Fresnel lens displayed on a liquid crystal device and working under broadband illumination is presented. It is based on time multiplexing a set of lenses, designed with a common focal length for different wavelengths, and a tunable spectral filter that makes each sublens work almost monochromatically. Both the tunable filter and the sublens displayed by the spatial light modulator are synchronized. The whole set of sublenses are displayed within the integration time of the sensor. As a result the central order focalization has a unique location at the focal plane and it is common for all selected wavelengths. Transversal chromatic aberration of the polychromatic point spread function is reduced by properly adjusting the pupil size of each sublens. Longitudinal chromatic aberration is compensated by making depth of focus curves coincident for the selected wavelengths. Experimental results are in very good agreement with theory.

© 2006 Optical Society of America

OCIS Codes
(090.1000) Holography : Aberration compensation
(090.1970) Holography : Diffractive optics
(100.1160) Image processing : Analog optical image processing
(230.3720) Optical devices : Liquid-crystal devices
(230.6120) Optical devices : Spatial light modulators

ToC Category:
Holography

History
Original Manuscript: July 21, 2006
Manuscript Accepted: September 8, 2006
Published: October 2, 2006

Citation
María S. Millán, Joaquín Otón, and Elisabet Pérez-Cabré, "Dynamic compensation of chromatic aberration in a programmable diffractive lens," Opt. Express 14, 9103-9112 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-20-9103


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