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Optics Letters

Optics Letters


  • Editor: Anthony J. Campillo
  • Vol. 32, Iss. 22 — Nov. 15, 2007
  • pp: 3281–3283

Laser projection using generalized phase contrast

Jesper Glückstad, Darwin Palima, Peter John Rodrigo, and Carlo Amadeo Alonzo  »View Author Affiliations

Optics Letters, Vol. 32, Issue 22, pp. 3281-3283 (2007)

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We demonstrate experimental laser projection of a gray-level photographic image with 74% light efficiency using the generalized phase contrast (GPC) method. In contrast with a previously proposed technique [ Alonzo et al., New J. Phys. 9, 132 (2007) ], a new approach to image construction via GPC is introduced. An arbitrary phase shift filter eliminates the need for high-frequency modulation and conjugate phase encoding. This lowers device performance requirements and allows practical implementation with currently available dynamic spatial light modulators.

© 2007 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(070.6110) Fourier optics and signal processing : Spatial filtering
(120.5060) Instrumentation, measurement, and metrology : Phase modulation
(140.3300) Lasers and laser optics : Laser beam shaping

ToC Category:
Fourier Optics and Signal Processing

Original Manuscript: September 20, 2007
Manuscript Accepted: October 18, 2007
Published: November 2, 2007

Jesper Glückstad, Darwin Palima, Peter John Rodrigo, and Carlo Amadeo Alonzo, "Laser projection using generalized phase contrast," Opt. Lett. 32, 3281-3283 (2007)

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