Holographic angle multiplexing combined with peristrophic multiplexing in a photorefractive LiNbO3 crystal

Hyunkwon Shin, Myeongkyu Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We have investigated angle multiplexing combined with peristrophic (rotational) multiplexing in a photorefractive LiNbO3 crystal of cylindrical shape. The peristrophic multiplexing was achieved by rotating the recording medium while the angle multiplexing, by varying the incident angle of the reference beam. Angle multiplexing in synchronization with rotation of the sample made it possible to continuously record and retrieve holograms. In the combined multiplexing, holograms were stored at different peristrophic positions and thus their angular selectivity could be much improved in comparison to that of only angle-multiplexed holograms. The theoretical angular selectivity was derived, along with its dependence on the sample rotation. The experimentally measured selectivity was in agreement with the theoretical one. The angular selectivity of angle-multiplexed holograms was measured to be 0.03° in the absence of sample rotation and it became less than 0.0075° with a sample rotation by 5.4°.

Original languageEnglish
Pages (from-to)299-303
Number of pages5
JournalOptics Communications
Volume269
Issue number2
DOIs
Publication statusPublished - 2007 Jan 15

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Photorefractive crystals
multiplexing
Multiplexing
Holograms
selectivity
crystals
lithium niobate
synchronism
Synchronization
recording

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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abstract = "We have investigated angle multiplexing combined with peristrophic (rotational) multiplexing in a photorefractive LiNbO3 crystal of cylindrical shape. The peristrophic multiplexing was achieved by rotating the recording medium while the angle multiplexing, by varying the incident angle of the reference beam. Angle multiplexing in synchronization with rotation of the sample made it possible to continuously record and retrieve holograms. In the combined multiplexing, holograms were stored at different peristrophic positions and thus their angular selectivity could be much improved in comparison to that of only angle-multiplexed holograms. The theoretical angular selectivity was derived, along with its dependence on the sample rotation. The experimentally measured selectivity was in agreement with the theoretical one. The angular selectivity of angle-multiplexed holograms was measured to be 0.03° in the absence of sample rotation and it became less than 0.0075° with a sample rotation by 5.4°.",
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Holographic angle multiplexing combined with peristrophic multiplexing in a photorefractive LiNbO3 crystal. / Shin, Hyunkwon; Lee, Myeongkyu.

In: Optics Communications, Vol. 269, No. 2, 15.01.2007, p. 299-303.

Research output: Contribution to journalArticle

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