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Recent advancements in photorefractive holographic imaging

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Title Recent advancements in photorefractive holographic imaging
Title of Series The 9th International Symposium on Display Holography (ISDH 2012)
Part Number 19
Number of Parts 47
Author Lynn, Brittany
License CC Attribution - NoDerivatives 2.0 UK: England & Wales:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/21059
Publisher River Valley TV
Release Date 2012
Language English

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Subject Area Computer Science
Abstract We have recently demonstrated several improvements in material properties and optical design to increase the resolution, size, brightness, and color range of updatable holograms using photorefractive materials. A compact system has been developed that is capable of producing holograms with a brightness in excess of 2,500 cd/m2 using less than 100mW of CW laser power. The size of the holograms have been increased to 300mm x 150mm with a writing time of less than 8 seconds using a 50 Hz pulse laser. Optical improvements have been implemented to reduce the hogel size to less than 200 µm. We have optimized the color gamut to extend beyond the NTSC CIE color space through a combination of spatial and polarization multiplexing. Further improvements could bring applications in telemedicine, prototyping, advertising, updatable 3D maps and entertainment.
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