Nonlinear Change in Refractive Index and Transmission Coefficient of ZnSe:Fe2+ at Long-Pulse 2.94-μm Excitation
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53358#.VMBefSzQrzE Author(s) Alexander V. Kir’yanov 1,2* , Nikolai N. Il’ichev 3 , Elmira S. Gulyamova 3 , Alexander S. Nasibov 4 , Peter V. Shapkin 4 Affiliation(s) 1 Centro de Investigaciones en Optica, Loma del Bosque 115, Lomas del Campestre, Leon, Mexico . 2 M.V. Lomonosov Moscow State University, Physics Department, Vorobyevy Gory, 1, Moscow, Russia . 3 A.M. Prokhorov General Physics Institute (Russ. Acad. Sci.), Ul. Vavilova 38, Moscow, Russia . 4 P.N. Lebedev Physical Institute (Russ. Acad. Sci.), Ul. Vavilova 38, Moscow, Russia . ABSTRACT An experimental study of the nonlinear changes in refractive index and transmission coefficient of single-crystal ZnSe:Fe 2+ , fabricated through the Fe-diffusion method, at long-pulse (~300 ns), sub-mJ, 2.94-mm Z-scan probing is reported. As well, a theoretical model based on the generalized Avizonis-Gro...