The dark enhancements with various exposure energies are studied in thick PQ/PMMA photopolymer. Considered the weak molecules diffusion of PQ component and the grating detuning, a new mechanism of dark reaction is proposed to explain the dark enhancement. Moreover, the influences of dark reaction on
โฆ LIBER โฆ
The shift of Bragg angular selectivity curve in darkness in glass-like photopolymer for holographic recording
โ Scribed by Jian Wang; Xiudong Sun; Suhua Luo; Yongyuan Jiang
- Book ID
- 104075554
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 517 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0925-3467
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โฆ Synopsis
The shift of Bragg angular selectivity curve after exposure was studied by recording single hologram and multiplexed holograms, respectively. The evolution of shift with probe time after recording, as well as the saturated shift with exposure energy, was investigated in detail. The mechanism of Bragg mismatch was analyzed. By optimizing parameters of material synthesis and holographic recording, the shift of Bragg matched angle was alleviated in PQ/PMMA photopolymer after hologram recording.
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Jian Wang; Xiudong Sun; Suhua Luo; Yongyuan Jiang
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Article
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2010
๐
Elsevier Science
๐
English
โ 397 KB