Investigation of third order nonlinearity in propagation of cylindrical waves in homogeneous nonlinear media

摘要

Four-wave mixing in propagation of cylindrical waves in a homogeneous nonlinear optical media has been investigated theoretically. An explicit analytical expression which contains all the main nonlinear optical effects, including third harmonic generation, sum and difference frequency generation has been obtained. A comparison between sum frequency efficiency for exact and approximation expression in a homogeneous nonlinear medium has been done. The effect of increasing the nonlinear optical coefficient (chi((3))(eff)) and increasing the frequency difference between two adjacent waves (Delta omega), on the efficiency of sum frequency generation in homogeneous media has been investigated. (C) 2016 Elsevier B.V. All rights reserved.