Effective indexes of refraction and limiting properties of ethyl red

Shengwen Qi; Yongliang Liu; Anping Liu; Li Jing; Mingzhen Li; Jihua Wang; Yongfa Hao; Baoquan Wang

doi:10.1117/12.783740

27 November 2007 Effective indexes of refraction and limiting properties of ethyl red

Shengwen Qi, Yongliang Liu, Anping Liu, Li Jing, Mingzhen Li, Jihua Wang, Yongfa Hao, Baoquan Wang

Proceedings Volume 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 672352 (2007) https://doi.org/10.1117/12.783740
Event: 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 2007, Chengdu, China

Abstract

The nonlinear optical properties of ethyl red (ER) doped PMMA film are measured, and the effective indexes of refraction n₂ of the film at the three wavelengths are -1.08×10^-9, -2.28×10^-9 and -1.35×10^-10m²W^-1 respectively. It indicates that ER sample has a larger optical nonlinearity compared with other optical materials. The nonlinear absorption of ER film at the three wavelengths is measured respectively. The self-diffraction of the film at 441.6nm and at 535nm is investigated respectively, and the results indicate it possesses high quality of optical limiting. The lasers of 441.6nm and 535nm can all induce thermal self-defocusing effects in the film.

Citation Download Citation

Shengwen Qi, Yongliang Liu, Anping Liu, Li Jing, Mingzhen Li, Jihua Wang, Yongfa Hao, and Baoquan Wang "Effective indexes of refraction and limiting properties of ethyl red", Proc. SPIE 6723, 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 672352 (27 November 2007); https://doi.org/10.1117/12.783740

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KEYWORDS

Thermal effects

Absorption

Nonlinear optics

Refraction

Polymethylmethacrylate

Diffraction

Gaussian beams

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