Av. Petukhov, SUM-FREQUENCY GENERATION ON ISOTROPIC SURFACES - GENERAL PHENOMENOLOGY AND MICROSCOPIC THEORY FOR JELLIUM SURFACES, Physical review. B, Condensed matter, 52(23), 1995, pp. 16901-16911
The theory of sum-frequency generation (SFG) upon reflection from isot
ropic media is considered. The emitted SFG radiation is expressed in t
erms of four bulk (quadrupole-allowed) and four surface nonlinear pola
rizabilities. These parameters are evaluated for the jellium surface.