Results 151 to 160 of about 2,603 (192)

Optical volume holography

Physics Reports, 1981
Abstract The major objective of this review is to describe the various theoretical techniques which have been used to model the reconstruction process in a volume hologram. Extensive reference is made to theories of scattering of waves by three-dimensional diffraction gratings in related areas of study.
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Volume holography in flowing liquids

Annual Meeting Optical Society of America, 1987
The volume holography process in a sensitized fluid is studied. The object of the research is to use forced Rayleigh scattering methods in the measurement of velocity gradients in fluids. The process is divided into three major steps: writing of the hologram; evolution of the hologram under the effect of fluid motion; and reading of the hologram by ...
Juna C. Aqui, Lambertus Hesselink
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Nonlinear Volume Holography for Wave-Front Engineering

Physical Review Letters, 2014
The concept of volume holography is applied to the design of an optical superlattice for the nonlinear harmonic generation. The generated harmonic wave can be considered as a holographic image caused by the incident fundamental wave. Compared with the conventional quasi-phase-matching method, this new method has significant advantages when applied to ...
Xu-Hao, Hong, Bo, Yang, Chao, Zhang, Yi-Qiang, Qin, Yong-Yuan, Zhu   +4 more
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Multidimensional tomographic imaging using volume holography

Proceedings of the IEEE, 1999
We propose the application of volume holography to four-dimensional (4-D) spatiospectral imaging. The proposed systems use materials and techniques developed for holographic data storage and interconnections to capture three-dimensional (3-D) spatial and one-dimensional (1-D) spectral information about a remote light source or scatterer.
George Barbastathis, David J. Brady
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Space-time processing with photorefractive volume holography

Proceedings of the IEEE, 1999
Photorefractive volume holography for processing ultrashort optical pulses carrying spatial, temporal, and spatiotemporal optical information is introduced. These new holographic methods can process temporal information, i.e., the temporal evolution of optical pulse signals, in addition to the usual spatial information.
Pang-Chen Sun, Kazutaka Oba, Yuri T. Mazurenko, S. Y. Fainman   +3 more
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Byte-storage device by volume holography at 1550 nm

Conference on Lasers and Electro-Optics (CLEO 2000). Technical Digest. Postconference Edition. TOPS Vol.39 (IEEE Cat. No.00CH37088), 2000
Summary form only given.Photonic technology is playing an increasing role in the field of communication system, proposing many interesting answers to its most urging requests. The need for processing operations suggests massive exploitation of all optical techniques; in particular, volume holography reveals itself as an extremely promising technology ...
M. C. Ubaldi, BOFFI, PIERPAOLO, D. Piccinin, C. Frascolla, MARTINELLI, MARIO   +4 more
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The Beam Ratio in Volume Holography

Journal of Modern Optics, 1988
Abstract Holograms for potential use as optical interconnects in micro-electronic circuits can be recorded optically by either sequential or simultaneous exposures. It is desirable that these holograms have the highest possible diffraction efficiency.
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Volume holography of transient optical fields

Soviet Journal of Quantum Electronics, 1973
It is shown that interaction between an optical signal and a special nonmonochromatic reference wave with a bulk light-sensitive material can be used to record information on the spatial and temporal characteristics of the signal. Illumination of a hologram obtained in this way with a special reconstructing wave produces a three-dimensional time ...
Vladimir A Zubov, Tatiana I Kuznetsova
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Hyperspectral holography and volume Denisyuk holograms

Holography: Advances and Modern Trends VI, 2019
Registration of two types of digital holograms is considered: digital hyperspectral holograms and Denisyuk volume holograms (holograms in colliding beams). Hyperspectral holograms are considered as an analogue of thin holograms, in which zero order and a conjugate image are suppressed.
Sergey Kalenkov, Georgy S. Kalenkov
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Technique for controlling cross-talk noise in volume holography

Optics Letters, 1996
We study cross-talk noise in holographic memory and estimate storage limits. We examine the effects of reduced angular density and the use of an apodized reconstruction beam on capacity, cross-talk noise, and diffraction efficiency. Experimental Bragg-selectivity curves with and without an apodized reconstruction beam verify the expected reduction in ...
M A, Neifeld, M, McDonald
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