Abstract Based on the three-coupled-oscillator molecular model we proposed, the relation between the second-order susceptibilities of a chiral film and the molecular hyperpolarizabilities is given. The effect of microscopic parameters on the second-order susceptibilities is simulated numerically and the difference between the efficiencies of s-polarized second-harmonic fields induced by the left- and the right-handed circularly-polarized fundamental beams is discussed. The theoretical basis for studying second-order nonlinear optical properties of the chiral molecular media with a tripod-like structure is provided in this paper.
Received: 24 December 2005
Revised: 07 July 2006
Accepted manuscript online:
PACS:
42.65.Ky
(Frequency conversion; harmonic generation, including higher-order harmonic generation)
Fund: Project supported by
the Natural Science Foundation of Heilongjiang Province, China
(Grant No~A200406).
Cite this article:
Wang Xiao-Ou(王晓鸥), Li Chun-Fei(李淳飞), and Li Jun-Qing(李俊庆) Surface second harmonic generation of chiral molecules using three-coupled-oscillator model 2006 Chinese Physics 15 2623
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