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Proceedings Paper

Photoinduced anisotropy in pyrrlfulgide and its application in optical image processing and polarization holography
Author(s): Neimule Menke; Baoli Yao; Yingli Wang; Yuan Zheng; Ming Lei; Zhiwei Ren; Guofu Chen; Yi Chen; Meigong Fan; Tiankai Li
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Paper Abstract

Photoinduced anisotropic properties of pyrrylfulgide are studied. From measurement of the photoinduced spectrum of dichroism, the birefringence spectrum is evaluated by Kramers-Kronig relations. At optimal exposure of 13 ~ 20J/cm2 a maximum photoinduced dichroism (Dperpendicular - Dparallel) of about 0.1 and a maximum photoinduced birefringence (nperpendicular - nparallel) of about 8×10-4 are achieved. We exploit this photoinduced anisotropy and use a pyrrylfulgide/PMMA film to demonstrate optical image processing such as contrast reversal, image subtraction and summation, low-pass filtering and edge-enhancement. From the spectra of dichroism and birefringence the spectrum of the diffraction efficiency for polarization holography is calculated. We demonstrate that diffracted images with high signal-to-noise-ratio (SNR) can be obtained by holographic recording with orthogonal polarization.

Paper Details

Date Published: 11 January 2005
PDF: 12 pages
Proc. SPIE 5642, Information Optics and Photonics Technology, (11 January 2005); doi: 10.1117/12.576797
Show Author Affiliations
Neimule Menke, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Baoli Yao, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Yingli Wang, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Yuan Zheng, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Ming Lei, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Zhiwei Ren, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Guofu Chen, Xi'an Institute of Optics and Precision Mechanics, CAS (China)
Yi Chen, Technical Institute of Physics and Chemistry, CAS (China)
Meigong Fan, Technical Institute of Physics and Chemistry, CAS (China)
Tiankai Li, Technical Institute of Physics and Chemistry, CAS (China)


Published in SPIE Proceedings Vol. 5642:
Information Optics and Photonics Technology
Guoguang Mu; Francis T. S. Yu; Suganda Jutamulia, Editor(s)

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