Open AccessSecond harmonic theory of two coupled oscillators in chiral molecular media
Author(s) -
Zheng Yang-Dong,
Junqing Li,
Chunfei Li
Publication year - 2003
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.52.372
Subject(s) - hyperpolarizability , second harmonic generation , polarization (electrochemistry) , molecule , surface second harmonic generation , harmonic oscillator , physics , harmonic , molecular physics , high harmonic generation , quantum mechanics , materials science , nonlinear system , atomic physics , nonlinear optical , chemistry , laser
We have derived the hyperpolarizability of a chiral molecule from the model of coupled two-oscillators in second-harmonic generation. We gave the susecptibility of a thin film. We discussed the influence of microscopic parameters of a molecule on the efficiency of second-harmonic generation through the relationship of hyperpolarizabilities and susceptibilities. We also have simulated the spectrum of rotational angle of polarization state. Our theoretical results fit the known experimental facts.