| CuS纳米粒子在太赫兹波段的光电性质研究 |
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| 引用本文： | 杨玉平,冯帅,冯辉,潘学聪,王义全,王文忠.CuS纳米粒子在太赫兹波段的光电性质研究[J].物理学报,2011,60(2):27802-027802. |
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| 作者姓名： | 杨玉平 冯帅 冯辉 潘学聪 王义全 王文忠 |
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| 作者单位： | (1)中国科学院物理研究所北京凝聚态物理国家实验室,光学物理重点实验室,北京 100190; (2)中央民族大学理学院,北京 100081 |
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| 基金项目： | 国家民委科研基金(批准号:09ZY012)、国家自然科学基金(批准号:10904176)和教育部"211工程"和"985工程"资助的课题. |
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| 摘 要： | 关键词：
太赫兹
CuS纳米粒子
Lorentz理论
Drude-Smith模型
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| 关 键 词： | 太赫兹 CuS纳米粒子 Lorentz理论 Drude-Smith模型 |
Optical and electrical properties of CuS nanoparticles in terahertz frequency |
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| Yang Yu-Ping,Feng Shuai,Feng Hui,Pan Xue-Cong,Wang Yi-Quan,Wang Wen-Zhong.Optical and electrical properties of CuS nanoparticles in terahertz frequency[J].Acta Physica Sinica,2011,60(2):27802-027802. |
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| Authors: | Yang Yu-Ping Feng Shuai Feng Hui Pan Xue-Cong Wang Yi-Quan Wang Wen-Zhong |
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| Institution: | School of Science, Minzu University of China, Beijing 100081, China;School of Science, Minzu University of China, Beijing 100081, China;Key Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;Key Laboratory of Optical Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;School of Science, Minzu University of China, Beijing 100081, China;School of Science, Minzu University of China, Beijing 100081, China |
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| Abstract: | The spectral response of the mixture composed of CuS nanoparticles and polyethylene powder was measured by the terahertz time-domain spectroscopy (THz-TDS). The low-frequency optical properties of pure CuS nanoparticles, including absorption coefficient, complex dielectric constants as well as conductivity, were calculated by the effective medium theory. The Lorentz theory of dielectric response and the Drude-Smith model of conductivity provide good fits on the measured dielectric function as well as conductivity, respectively. In addition, some terahertz optical properties, such as the frequency of the lattice vibration and the time constant for the carrier scattering, are also obtained by the fitting. Our investigation could help to reveal the material properties in the terahertz range and to find out the promising physical effect for special application. |
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| Keywords: | terahertz CuS nanoparticles Lorentz theory Drude-Smith model |
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