| 替位式掺杂的富勒烯分子C77X(X=B,N原子)的非线性光学性质 |
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| 引用本文： | 朱建奇,董锦明,万贤刚.替位式掺杂的富勒烯分子C77X(X=B,N原子)的非线性光学性质[J].物理学报,1999,48(11):2042-2050. |
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| 作者姓名： | 朱建奇 董锦明 万贤刚 |
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| 作者单位： | (1)江苏教育学院物理系，南京 210013; (2)南京大学固体微结构物理国家重点实验室，物理系，南京 210093 |
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| 摘 要： | 采用推广的Su-Schrieffer-Heeger模型和sum-over-state方法计算了掺杂的富勒烯分子C77X(X=B或N原子)的三阶非线性极化率γ.计算结果表明：1)与C78相比，各C77X分子的三阶非线性极化率γ的静态值均有不同程度的提高(3—40倍)；2) C77X的非线性动态光学响应不仅与掺杂原子有关，还与异构体种类和掺杂位置有关.
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| 关 键 词： | 非线性光学 替位掺杂 富勒烯分子 C77X |
| 收稿时间： | 4/1/1999 12:00:00 AM |
NONLINEAR OPTICAL PROPERTIES OF THE SUBSTITU-TIONAL FULLERENE C77X(X=B,N ATOMS) |
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| ZHU JIAN-QI,DONG JIN-MING and WAN XIAN-GANG.NONLINEAR OPTICAL PROPERTIES OF THE SUBSTITU-TIONAL FULLERENE C77X(X=B,N ATOMS)[J].Acta Physica Sinica,1999,48(11):2042-2050. |
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| Authors: | ZHU JIAN-QI DONG JIN-MING and WAN XIAN-GANG |
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| Abstract: | Using the extened Su-Schrieffer-Heeger model and the Sum-Over-State method, we have calculated the third-order nonlinear polarizability γ and its dispersion spectra for single substitutional fullerenes C77X(X=B or N atoms). The results indicate:(1) compared with C78,each of the static values of γ through the substitutional doping increases to some extent (3—40 times);(2) the dynamic nonliear optical reponse of C77X not only depends on doping atoms, but also depends on the substituted isomers and doped sites. |
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