...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Generation of multiple Fano resonances in plasmonic panda's eye structures
【24h】

Generation of multiple Fano resonances in plasmonic panda's eye structures

机译：代义熊猫眼结构中多个FANO共振的产生

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A kind of dimer nanostructure similar to panda's eye (P-E), consisting two center biased elliptical rings, is proposed in this paper. The finite element method is used to study the nanostructure with the vertical incident light. The structure exhibits high order magnetic modes and the magnetic modes intensity can be manipulated independently by changing the structure parameters. The intensities of the magnetic dipole and magnetic quadrupole modes can be controlled by changing the angle between two rings and the distance of two cavity centers, respectively. Moreover, when two circular cavities increase simultaneously, the intensity of the magnetic octupole mode increases accordingly. Fano resonance can be induced when the electric mode couples with the magnetic mode. When the radius of the left circular cavity decreases, triple Fano resonance is formed. And when the whole structure is rotated, quintuple Fano resonance can be formed. More interesting, when the radii of the circular cavities of the two elliptical rings increase to 50 and 55 nm, the nanostructure becomes crescent dimer, and the enhancements of magnetic field and electric field reach 38 and 390, respectively. The P-E structure has potential application value in multiwavelength surface enhanced spectroscopy and biochemical sensing.
机译：本文提出了一种类似于熊猫眼（P-E）的二聚体纳米结构，包括两个中心偏置椭圆环。有限元方法用于使用垂直入射光研究纳米结构。该结构表现出高阶磁性模式，并且可以通过改变结构参数来独立地操纵磁性模式强度。通过分别改变两个环和两个腔中心的距离之间的角度，可以控制磁性偶极和磁性四极其模式的强度。此外，当两个圆形腔同时增加时，磁Octupole模式的强度相应地增加。当电动模式与磁力模式耦合时，可以引起Fano共振。当左圆形腔的半径降低时，形成三重FANO谐振。当整个结构旋转时，可以形成Quintule Fano共振。更有趣的是，当两个椭圆环的圆形空腔的半径增加到50和55nm时，纳米结构变为新月形二聚体，并且分别增强磁场和电场达到38和390。 P-E结构具有多波长表面增强的光谱和生物化学传感的潜在应用值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号