... 20.09.2009 . ... Moscow Vyatichi, November 9 - 11, 2009. ... Opt., 2009, v. 11, 074008 . ... In this work we study sum-frequency generation from the surface of an isotropic chiral medium in arbitrary interaction geometry of the paraxial light beams at fundamental frequencies. ... Within the first-order approximation approach, generally, the polarization state of light is distributed inhomogeneously in the reflected signal beam cross section, and the transversal intensity distribution is not Gaussian...