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	Applications of phase masks in volume holographic data storage system and correlators
	Wei Ren ; Qiang Ma ; Liangcai Cao ; Qingsheng He ; Guofan Jin
	2010-05-10 ; 2010-05-10
会议名称	Proceedings of the SPIE - The International Society for Optical Engineering ; Quantum Optics, Optical Data Storage, and Advanced Microlithography ; Beijing, China ; INSPEC
关键词	Practical Theoretical or Mathematical/ content-addressable storage Fourier transform optics holographic storage image reconstruction masks optical correlation optical crosstalk optical design techniques optical fabrication spatial light modulators/ two-level phase mask design content-addressable volume holographic data storage system optical correlators spectrum modulation image reconstruction errors content search capability pixel structure Fourier-transform holographic recording spatial light modulator SLM binary data page Fourier plane diffraction sidelobe suppression optical cross talk/ A4240 Holography A4280T Optical storage and retrieval A4280K Optical beam modulators A4230 Optical information, image formation and analysis A4240F Image characteristics in holography A4230V Image processing and restoration A4230K Fourier transform optics A4285D Optical fabrication, surface grinding A4215E Optical system design B4350 Holography B6135 Optical, image and video signal processing B4150 Electro-optical devices B4120 Optical storage and retrieval C5320K Optical storage C5260B Computer vision and image processing techniques
中文摘要	Effects of phase masks, used in content-addressable volume holographic data storage system, on the spectrum modulation, image reconstruction, and content search capability are analyzed. We have investigated the influence of varying the pixel structure of phase masks on Fourier-transform holographic recording and reconstruction errors. The effect on reconstruction errors of using a (0, pi ) two-level phase mask is studied. The case that a single pixel in the phase mask extended to cover four or more pixels in the spatial light modulator (SLM) is discussed. The reconstruction errors of a recorded binary data page and the field amplitude in the Fourier plane are evaluated when the phase mask is misaligned to the SLM. We have also investigated the performance of phase masks in terms of suppressing the diffraction sidelobes which lead to correlation cross talk and sharpening the correlation peaks. The results provide a useful support for the mask design, fabrication and applications in the practical content-addressable volume holographic data storage.
会议录出版者	SPIE - The International Society for Optical Engineering ; USA
语种	英语 ; 英语
内容类型	会议论文
源URL	[http://hdl.handle.net/123456789/19138]
专题	清华大学
推荐引用方式 GB/T 7714	Wei Ren,Qiang Ma,Liangcai Cao,et al. Applications of phase masks in volume holographic data storage system and correlators[C]. 见:Proceedings of the SPIE - The International Society for Optical Engineering, Quantum Optics, Optical Data Storage, and Advanced Microlithography, Beijing, China, INSPEC.

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