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	Comparison of defocusing and fractional Fourier transform in spectroholographic storage
	Zhuo Wang ; Guofan Jin ; Qingsheng He ; Minxian Wu
	2010-05-10 ; 2010-05-10
关键词	Theoretical or Mathematical/ Fourier transform optics Fourier transform spectra holographic storage image reconstruction/ defocusing method fractional Fourier transform spectroholographic storage spectrum uniformity recorded information quality improvement Fraunhofer spectrum reconstructed image CCD detection plane recording aperture reconstructed information/ A4240H Holographic recording A4280T Optical storage and retrieval A4230K Fourier transform optics A4230V Image processing and restoration B4350 Holography B4120 Optical storage and retrieval B6135 Optical, image and video signal processing
中文摘要	In spectroholographic storage systems the defocusing method is often used for spectrum uniformity and quality improvement of recorded information. The same purpose is served by the fractional Fourier transform (FRFT) storage system. To simplify the numerical analysis, we derive the expressions of the Fraunhofer spectrum and the reconstructed image at the detected plane (CCD) for both cases instead of using the Fresnel spectrum and the FRFT spectrum. The recording aperture, spectrum uniformity, and reconstructed information of both systems are investigated. A numerical comparison is also presented.
语种	英语 ; 英语
出版者	Opt. Soc. America ; USA
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/24958]
专题	清华大学
推荐引用方式 GB/T 7714	Zhuo Wang,Guofan Jin,Qingsheng He,et al. Comparison of defocusing and fractional Fourier transform in spectroholographic storage[J],2010, 2010.
APA	Zhuo Wang,Guofan Jin,Qingsheng He,&Minxian Wu.(2010).Comparison of defocusing and fractional Fourier transform in spectroholographic storage..
MLA	Zhuo Wang,et al."Comparison of defocusing and fractional Fourier transform in spectroholographic storage".(2010).

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