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Applied Optics

Applied Optics


  • Vol. 39, Iss. 5 — Feb. 10, 2000
  • pp: 766–769

Optical correlation by use of partial phase-only modulation with VGA liquid-crystal displays

Ignasi Labastida, Arturo Carnicer, Estela Martín-Badosa, Santiago Vallmitjana, and Ignacio Juvells  »View Author Affiliations

Applied Optics, Vol. 39, Issue 5, pp. 766-769 (2000)

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The development of liquid-crystal panels for use in commercial equipment has been aimed at improving the pixel resolution and the display efficiency. These improvements have led to a reduction in the thickness of such devices, among other outcomes, that involves a loss in phase modulation. We propose a modification of the classical phase-only filter to permit displays in VGA liquid-crystal panels with a constant amplitude modulation and less than a 2π phase modulation. The method was tested experimentally in an optical setup.

© 2000 Optical Society of America

OCIS Codes
(100.4550) Image processing : Correlators
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(200.4740) Optics in computing : Optical processing
(230.3720) Optical devices : Liquid-crystal devices

Original Manuscript: May 10, 1999
Revised Manuscript: August 2, 1999
Published: February 10, 2000

Ignasi Labastida, Arturo Carnicer, Estela Martín-Badosa, Santiago Vallmitjana, and Ignacio Juvells, "Optical correlation by use of partial phase-only modulation with VGA liquid-crystal displays," Appl. Opt. 39, 766-769 (2000)

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