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

Darwin Palima | Zendy; Jesper Glückstad | Zendy

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

Author(s) -

Darwin Palima,

Jesper Glückstad

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.005338

Subject(s) - optics , holography , speckle pattern , computer science , phase retrieval , phase modulation , speckle noise , projection (relational algebra) , modulation (music) , phase noise , physics , algorithm , fourier transform , quantum mechanics , acoustics

Laser projection based on phase modulation promises several advantages over amplitude modulation. We examine and compare the merits of two phase modulation techniques; phase-only computer generated holography and generalized phase contrast, for the application of dynamic laser image projection. We adopt information theory as a guiding framework and analyze information-relevant metrics such as space-bandwidth product, output display resolution, efficiency, speckle noise, computational load and device requirements. The analysis takes into account the perspective of potential end-users.

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