RELATIONSHIP BETWEEN THE 2ND-ORDER MICROSCOPIC AND MACROSCOPIC NONLINEAR-OPTICAL SUSCEPTIBILITIES OF POLED DYE-DOPED POLYMERS

We model the relationship between the microscopic and macroscopic seco nd-order nonlinear optical susceptibilities of axially ordered and pol ed dye-doped polymers. The bulk polarization is derived under the assu mptions of addibility of the microscopic polarizations of the nonlinea r moieties and the dipole approximation. The calculations provide corr ection terms to the model by Singer, Kuzyk, and Sohn [J. Opt. Sec. Am. B 4, 968 (1987)]. (C) 1998 Optical Society of America [S0740-3224(98) 00108-8] OCIS codes: 190.4710, 190.4400, 310.6860, 160.4330, 160.4890.