Abstract

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

Comparison of generalized phase contrast and computer generated holography for laser image projection

Darwin Palima and Jesper Glückstad
Opt. Express 16(8) 5338-5349 (2008)

Generalized phase contrast matched to Gaussian illumination

Darwin Palima, Carlo Amadeo Alonzo, Peter John Rodrigo, and Jesper Glückstad
Opt. Express 15(19) 11971-11977 (2007)

Diffractive generalized phase contrast for adaptive phase imaging and optical security

Darwin Palima and Jesper Glückstad
Opt. Express 20(2) 1370-1377 (2012)

Multi-wavelength spatial light shaping using generalized phase contrast

Darwin Palima and Jesper Glückstad
Opt. Express 16(2) 1331-1342 (2008)

Accurate quantitative phase imaging using generalized phase contrast

Peter John Rodrigo, Darwin Palima, and Jesper Glückstad
Opt. Express 16(4) 2740-2751 (2008)