| 旋转共轭希腊十字型手征结构特性研究 |
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| 引用本文： | 杨方清,李杰,王战,董建峰.旋转共轭希腊十字型手征结构特性研究[J].光学学报,2011(10):148-152. |
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| 作者姓名： | 杨方清 李杰 王战 董建峰 |
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| 作者单位： | 宁波大学光纤通信与网络技术研究所; |
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| 基金项目： | 国家自然科学基金(61078060); 浙江省自然科学基金(Y1091139); 宁波市科技局工业攻关(2008B10042); 宁波市新型光电功能材料及器件创新团队(2009B21007); 宁波大学王宽诚幸福基金资助课题 |
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| 摘 要： | 提出了一种新型的纳米级旋转共轭希腊十字型手征结构,并对该结构上下两层希腊十字的旋转角度进行了优化；数值模拟了该结构对不同频率入射波的透射和反射响应,发现透射谱在频率为145和300 THz处存在两个明显的谐振点.通过对透射反射谱的反演,计算了结构的圆二色性、旋光角,得出该结构在谐振频率附近具有很强的旋光性,最大旋光角达...
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| 关 键 词： | 材料 手征 旋光性 圆二色性 负折射率 |
Characteristics of the Twisted Conjugated Gammadion Chiral Structure |
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| Yang Fangqing Li Jie Wang Zhan Dong Jianfeng.Characteristics of the Twisted Conjugated Gammadion Chiral Structure[J].Acta Optica Sinica,2011(10):148-152. |
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| Authors: | Yang Fangqing Li Jie Wang Zhan Dong Jianfeng |
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| Institution: | Yang Fangqing Li Jie Wang Zhan Dong Jianfeng(Institute of Optical Fiber Communication and Network Technology,Ningbo University,Ningbo,Zhejiang 315211,China) |
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| Abstract: | A new nanometer twisted conjugated gammadion chiral structure is proposed,and the twisted angle of upper and lower layers of the structure is optimized.The transmission and reflection spectra for the incident wave with different frequencies are obtained from numerical simulations.The resonance dips of the transmission spectra at the frequencies of 145 and 300 THz are observed.The circular dichroism,polarization azimuth rotation angle are calculated from simulated transmission and reflection spectra.The resu... |
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| Keywords: | materials chirality optical activity circular dichroism negative refractive index |
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