| 双振子模型手性分子介质的二次谐波理论 |
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| 引用本文： | 郑仰东,李俊庆,李淳飞. 双振子模型手性分子介质的二次谐波理论[J]. 物理学报, 2003, 52(2): 372-376 |
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| 作者姓名： | 郑仰东 李俊庆 李淳飞 |
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| 作者单位： | 哈尔滨工业大学物理系，哈尔滨 150001 |
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| 基金项目： | 国家重点基础研究发展规划项目(批准号：G2000028200)资助的课题. |
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| 摘 要： | 推导了在二次谐波条件下耦合双振子模型手性分子的一阶超极化率，给出了薄膜手性介质的二阶极化率，分析了分子的微观参量对二次谐波产生效率的影响.理论计算所得的偏振旋转角谱和已有的实验结果相符.关键词：手性分子分子极化率介质极化率二次谐波
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| 关 键 词： | 手性分子 分子极化率 介质极化率 二次谐波 |
| 收稿时间： | 2002-05-19 |
| 修稿时间： | 2002-05-19 |
Second harmonic theory of two coupled oscillators in chiral molecular media |
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| Zheng Yang-Dong,Li Jun-Qing and Li Chun-Fei. Second harmonic theory of two coupled oscillators in chiral molecular media[J]. Acta Physica Sinica, 2003, 52(2): 372-376 |
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| Authors: | Zheng Yang-Dong Li Jun-Qing Li Chun-Fei |
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| Abstract: | 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. |
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| Keywords: | chiral molecular medium hyperpolarizability susceptibility second-harmonic generation |
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