Nonlinear interaction and reflection of incoherent light beams

• Published in: Bulletin of the Russian Academy of Sciences. Physics Vol. 74; no. 12; pp. 1637 - 1641
• Main Authors: Gorbach, D. V., Romanov, O. G., Sukhorukov, A. P., Tolstik, A. L.
• Format: Journal Article
• Language: English
• Published: Heidelberg Allerton Press, Inc 01-12-2010; Springer Nature B.V
• Subjects: Hadrons; Heavy Ions; Light beams; Light reflection; Nuclear Physics; Physics; Physics and Astronomy; Proceedings of the XII All-Russia Seminar “The Wave Phenomena in Inhomogeneous Media”; Refractivity; Nonlinear Medium; Pump Beam; Total Internal Reflection; Yttrium Aluminum Garnet; Pump Wave
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873810120014

The interaction dynamics between two incoherent light beams in a medium with thermal nonlin-earity is studied both experimentally and theoretically. It is shown that in the mode of a nonlinear reflection the transformation of a spatial structure of a weak signal beam can be theoretically described in the framework of a spatially distributed model for a nonlinear change in the refractive index of the medium.