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Optical Engineering

Self-imaging, self-healing beams generated by photorefractive volume holography
Author(s): Jonathan P. Manigo; Raphael A. A. Guerrero
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Paper Abstract

Self-imaging beams consisting of three-dimensional intensity voids are generated via photorefractive volume holography. Reconstruction of a volume hologram recorded at 594 nm is performed with a Bessel readout beam. The holographic output is similar in appearance to a Bessel beam, with the central spot oscillating between maximum and zero intensity over a propagation distance of 10 to 55 cm. The oscillation period for the on-axis intensity is 30 cm. The reconstruction is capable of self-healing, with a fully recovered central core after the beam propagates 40 cm. Dual-wavelength reconstruction at 632.8 nm produces an output beam with similar self-imaging and self-healing properties. A theoretical framework based on the interference of a plane wave and a Bessel beam simultaneously reconstructed from a volume hologram is able to describe our experimental results.

Paper Details

Date Published: 28 October 2015
PDF: 6 pages
Opt. Eng. 54(10) 104113 doi: 10.1117/1.OE.54.10.104113
Published in: Optical Engineering Volume 54, Issue 10
Show Author Affiliations
Jonathan P. Manigo, Ateneo de Manila Univ. (Philippines)
Raphael A. A. Guerrero, Ateneo de Manila Univ. (Philippines)

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