Length dependence of linear and nonlinear optical properties of finite-length BN(5,0) nanotube
Lan You-Zhao (蓝尤钊), Wu Dong-Sheng (吴东升), Huang Shu-Ping (黄淑萍), Shen Juan (沈娟), Li Fei-Fei (李飞飞), Cheng Wen-Dan (程文旦)
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter,The Graduate School of The Chinese Academy of Sciences, Fuzhou 350002, China
Abstract In this paper, we investigate the length dependence of linear and nonlinear optical properties of finite-length BN nanotubes. The recently predicted smallest BN(5,0) nanotube with configuration stabilization is selected as an example. The energy gap and optical gap show the obvious length dependence with the increase of nanotube length. When the length reaches about 24 ?, the energy gap will saturate at about 3.2 eV, which agrees well with the corrected quasi-particle energy gap. The third-order polarizabilities increase with the increase of tube length. Two-photon allowed excited states have significant contributions to the third-order polarizabilities of BN(5,0) nanotube.
Received: 28 August 2005
Revised: 10 April 2006
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 20373073 and
90201015), the Science Foundation of Fujian Province, China (Grant Nos E0210028 and 2002F010), and the Foundation of State Key Laboratory of Structural Chemistry
Cite this article:
Lan You-Zhao (蓝尤钊), Wu Dong-Sheng (吴东升), Huang Shu-Ping (黄淑萍), Shen Juan (沈娟), Li Fei-Fei (李飞飞), Cheng Wen-Dan (程文旦) Length dependence of linear and nonlinear optical properties of finite-length BN(5,0) nanotube 2006 Chinese Physics 15 1563
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