Nonlinear absorption of visible light in silicate glasses doped with copper nanoparticles
R. A. Ganeev'Akadempribor' Research and Production Association, Academy of Science of Uzbekistan, Tashkent, UzbekistanA. I. Ryasnyanskiı̆A. Navoi Samarkand State University, Samarkand, UzbekistanА. Л. СтепановE.K. Zavoiskii Kazan' Physicotechnical Institute, Kazan Scientific Centre of the Russian Academy of Sciences, Russian FederationT. Usmanov'Akadempribor' Research and Production Association, Academy of Science of Uzbekistan, Tashkent, Uzbekistan
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The nonlinear absorption of light by silicate glasses doped with copper nanoparticles is studied. Two-photon and saturated absorptions were observed simultaneously and interpreted. The measured two-photon absorption coefficient was 6 × 10-6 cm W-1 and the saturation intensity was 4.3 × 108 W cm-2.
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