| 同轴金纳米管有序阵列的光学特性及滤波应用 |
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| 引用本文： | 成建新,周盈,常建华,倪海彬.同轴金纳米管有序阵列的光学特性及滤波应用[J].光通信研究,2021(2):41-47. |
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| 作者姓名： | 成建新 周盈 常建华 倪海彬 |
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| 作者单位： | 南京信息工程大学 电子与信息工程学院,南京 210044;南京信息工程大学 电子与信息工程学院,南京 210044;江苏省气象探测与信息处理重点实验室,南京 210044 |
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| 基金项目： | 国家自然科学基金资助项目(61605082);江苏省自然科学基金资助项目(BK20160969);江苏省高等学校自然科学基金资助项目(16KJB510020)。 |
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| 摘 要： | 为实现超材料滤波器在可见和近红外波段的多波段可调滤波,通过时域有限差分法对同轴金纳米管有序阵列进行数值模拟,研究了该结构中圆柱形和间隙表面等离激元的吸收特性及其滤波应用,分析了共振波个数及波长位置与结构参数的关系.仿真结果表明,通过调节结构参数可以实现在600～1700 nm范围内多波段可调滤波.
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| 关 键 词： | 圆柱形表面等离激元 同轴金纳米管有序阵列 多波段光学滤波器 |
Optical Properties and Filtering Applications of Coaxial Gold Nanotube Ordered Array |
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| CHENG Jian-xin,ZHOU Ying,CHANG Jian-hua,NI Hai-bin.Optical Properties and Filtering Applications of Coaxial Gold Nanotube Ordered Array[J].Study on Optical Communications,2021(2):41-47. |
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| Authors: | CHENG Jian-xin ZHOU Ying CHANG Jian-hua NI Hai-bin |
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| Institution: | (School of Electronics and Information Engineering,Nanjing University of Information Science and Technology,Nanjing 210044,China;Jiangsu Key Laboratory of Meteorological Observation and Signal Processing,Nanjing 210044,China) |
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| Abstract: | In order to realize the multi-band tunable filtering of the metamaterial filter in the visible and near infrared bands,the ordered array of coaxial gold nanotubes is numerically simulated by using the Finite-Difference Time-Domain method.We investigate the absorption characteristics of cylindrical surface plasmons as well as gap surface plasmons in the ordered array and explore their applications in the filtering fields.Then we analyze the influence of structural parameters on the number and location of resonant wavelengths.The simulation results show that multi-band tunable filtering can be realized in the range of 600~1700 nm by adjusting the structural parameters. |
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| Keywords: | cylindrical surface plasmons coaxial gold nanotube ordered array multi-band optical filter |
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