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Optical Engineering • Open Access

Two-wavelength holographic recording in photopolymer using four-energy-level system: experiments and modeling
Author(s): Chun-Hua Lin; Sheng-Lung Cho; Shiuan-Huei Lin; Sien Chi; Ken-Yuh Hsu

Paper Abstract

We investigate a two-wavelength method for recording a persistent hologram in a doped photopolymer. The recording method is based on two separated optical excitations of the four-energy-level system of the doped element, one at λ=325  nm as the sensitizing wavelength and the other at λ=647  nm as the writing wavelength, allowing for an experimental demonstration of nondestructive readout in phenanthrenequinone-doped poly(methyl methacrylate). Further, a four-energy-level rate equations model is proposed for describing the dynamics of hologram recording. The model successfully explains our experimental finding and further provides a general method to investigate such a two-wavelength holographic recording in photopolymer.

Paper Details

Date Published: 31 March 2014
PDF: 11 pages
Opt. Eng. 53(11) 112303 doi: 10.1117/1.OE.53.11.112303
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Chun-Hua Lin, National Chiao Tung Univ. (Taiwan)
Sheng-Lung Cho, Yuan Ze Univ. (Taiwan)
Shiuan-Huei Lin, National Chiao Tung Univ. (Taiwan)
Sien Chi, Yuan Ze Univ. (Taiwan)
Ken-Yuh Hsu, National Chiao Tung Univ. (Taiwan)

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