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Randomly displaced phase distribution design and its advantage in page-data recording of Fourier transform holograms |
Applied Optics, Vol. 52, Issue 6, pp. 1183-1191 (2013)
http://dx.doi.org/10.1364/AO.52.001183
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Abstract
For Fourier transform holography, an effective random phase distribution with randomly displaced phase segments is proposed for obtaining a smooth finite optical intensity distribution in the Fourier transform plane. Since unitary phase segments are randomly distributed in-plane, the blanks give various spatial frequency components to an image, and thus smooth the spectrum. Moreover, by randomly changing the phase segment size, spike generation from the unitary phase segment size in the spectrum can be reduced significantly. As a result, a smooth spectrum including sidebands can be formed at a relatively narrow extent. The proposed phase distribution sustains the primary functions of a random phase mask for holographic-data recording and reconstruction. Therefore, this distribution is expected to find applications in high-density holographic memory systems, replacing conventional random phase mask patterns.
© 2013 Optical Society of America
OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(090.0090) Holography : Holography
(210.0210) Optical data storage : Optical data storage
ToC Category:
Holography
History
Original Manuscript: October 26, 2012
Revised Manuscript: January 11, 2013
Manuscript Accepted: January 11, 2013
Published: February 13, 2013
Citation
Akira Emoto and Takashi Fukuda, "Randomly displaced phase distribution design and its advantage in page-data recording of Fourier transform holograms," Appl. Opt. 52, 1183-1191 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-6-1183
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