Nonlinear refraction and nonlinear absorption of an aqueous colloidal solution of chalcogenide As<sub>2</sub>S<sub>3</sub>
R. A. Ganeev'Akadempribor' Research and Production Association, Academy of Science of Uzbekistan, Tashkent, UzbekistanA.I. RyasnyanskyA. Navoi Samarkand State University, Samarkand, UzbekistanT. Usmanov'Akadempribor' Research and Production Association, Academy of Science of Uzbekistan, Tashkent, Uzbekistan
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Nonlinear optical characteristics of an aqueous colloidal solution of As2S3 are studied by the Z-scan technique at the wavelength 1064 of a 25-ns Nd:YAG laser. The measured values of the nonlinear refractive index and the third-order nonlinear susceptibility are found to be −2.8 × 10-11 and −4.7 × 10-12 CGSE units, respectively. The nonlinear absorption coefficient of the chalcogenide solution is found to be 1 cm GW-1.
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