Complex Fresnel hologram display using a single SLM.
Appl Opt
; 50(34): H128-35, 2011 Dec 01.
Article
em En
| MEDLINE
| ID: mdl-22192997
ABSTRACT
We propose a novel optical method to display a complex Fresnel hologram using a single spatial light modulator (SLM). The method consists of a standard coherent image processing system with a sinusoidal grating at the Fourier plane. Two or three position-shifted amplitude holograms displayed at the input plane of the processing system can be coupled via the grating and will be precisely overlapped at the system's output plane. As a result, we can synthesize a complex hologram that is free of the twin image and the zero-order light using a single SLM. Because the twin image is not removed via filtering, the full bandwidth of the SLM can be utilized for displaying on-axis holograms. In addition, the degree of freedom of the synthesized complex hologram display can be extended by involving more than three amplitude holograms.
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MEDLINE
Idioma:
En
Ano de publicação:
2011
Tipo de documento:
Article