期刊
OPTICS EXPRESS
卷 21, 期 24, 页码 29205-29216出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.21.029205
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资金
- Polish National Center for Research and Development, project CULPA [LIDER/013/469/L-4/12/NCBR/2013]
- Warsaw University of Technology through Faculty of Physics
Images displayed by holographic methods on phase-only light modulators inevitably suffer from speckle noise. It is partly caused by multiple uncontrolled interferences between laser light rays forming adjacent pixels of the image while having a random phase state. In this work the experimental proof of concept of an almost speckle-less projection method is presented, which assumes introducing a spatial separation of the image pixels, thus eliminating the spurious interferences. A single displayed sub-frame consists of separated light spots of very low intensity error. The sub-frames with different sampling offsets are then displayed sequentially to produce a non-fragmented color final image. (C)2013 Optical Society of America
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