title: Optical rectification at isotropic chiral film composed of tripod-like molecules.
abstract: In the paper, the three-coupled-oscillator model presented by us is used to study the optical rectification in isotropic chiral films. The zero frequency hyperpolarizabilities of chiral molecules with a tripod-like structure are calculated. The expressions of the static-electric polarization and the relations between the optical rectification and the microscopic parameters of chiral medium are obtained by theoretical derivation. Furthermore, the relations of the dc electric-dipole polarization with the wavelength of incident light and microscopic parameters of chiral molecules have been simulated numerically.
authors.affiliation: Department of Physics, Harbin Institute of Technology, 92 West Dazhi Street, Harbin 150001, China. wxo@hit.edu.cn
authors.forename: Xiao-Ou
authors.initials: XO
authors.lastname: Wang
authors.forename: Li-Jing
authors.initials: LJ
authors.lastname: Gong
authors.forename: Chun-Fei
authors.initials: CF
authors.lastname: Li