Determinations of third- and fifth-order nonlinearities by the use of the top-hat-beam Z scan: theory and experiment
JOSA B, Vol. 22, Issue 2, pp. 446-452 (2005)
http://dx.doi.org/10.1364/JOSAB.22.000446
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Abstract
We made a theoretical investigation on the top-hat-beam Z scan when the nonlinear media possess third- and fifth-order nonlinearities simultaneously. A high-accuracy method was proposed to allow the determination of the nonlinear refraction coefficients related to the third- and fifth-order effects. We also reconfirmed the common procedure for dividing the contributions of the third- and fifth-order effects to the nonlinearity in the top-hat-beam Z-scan measurements; the results indicated that the common procedure can be still employed for the determination of the third-order nonlinearity, whereas it is inapplicable for the fifth-order nonlinearity. We investigated experimentally, as a test, the nonlinear refraction of a Disperse Yellow 7 thin film by using the top-hat-beam Z-scan technique, with 35-ps-duration pulses at a 1064-nm wavelength.
© 2005 Optical Society of America
OCIS Codes
(190.3270) Nonlinear optics : Kerr effect
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
Citation
Bing Gu, Xian-Chu Peng, Tao Jia, Jian-Ping Ding, Jing-Liang He, and Hui-Tian Wang, "Determinations of third- and fifth-order nonlinearities by the use of the top-hat-beam Z scan: theory and experiment," J. Opt. Soc. Am. B 22, 446-452 (2005)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-22-2-446
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