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Proceedings Paper

Nonlinear optical properties of Congo red in aqueous solution and PVA film
Author(s): Shengwen Qi; Chunping Zhang; Xiuqin Yang; Kuan Chen; Lianshun Zhang
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Paper Abstract

The absorption spectra of Congo red (CR) in aqueous solution and PVA film are measured, respectively. With the Z-scan method, the nonlinear optical properties of CR are investigated, and experimental data on the nonlinear refractive index and the change of refractive index are obtained. As a result, the intensity dependent index n2 of CR has been determined to be in the range from 10-10 to 10-9 m2/W. The nonlinear absorption of CR aqueous film and CR-doped PVA film for three wavelengths is measured respectively. Under the condition of that the two samples are irradiated by 443nm or 535nm, the characteristics of absorption as function of the power of 633nm are determined. Finally, the experimental results are analyzed.

Paper Details

Date Published: 16 December 2004
PDF: 8 pages
Proc. SPIE 5621, Optical Materials in Defence Systems Technology, (16 December 2004); doi: 10.1117/12.569563
Show Author Affiliations
Shengwen Qi, Dezhou Univ. (China)
Nankai Univ. (China)
Chunping Zhang, Nankai Univ. (China)
Xiuqin Yang, Nankai Univ. (China)
Kuan Chen, Nankai Univ. (China)
Lianshun Zhang, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 5621:
Optical Materials in Defence Systems Technology
Anthony W. Vere; James G. Grote; Francois Kajzar, Editor(s)

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