首页> 外文期刊>Plasmonics >Enhanced Optical Transmission Assisted Near-Infrared Plasmonic Optical Filter via Hybrid Subwavelength Structures
【24h】

Enhanced Optical Transmission Assisted Near-Infrared Plasmonic Optical Filter via Hybrid Subwavelength Structures

机译:通过混合亚波长结构增强光传输辅助近红外等离子体滤光器

获取原文
获取原文并翻译 | 示例

摘要

Enhanced optical transmission (EOT), which results from the incident light interacting with the subwavelength nanostructures patterned in a metallic film, showcases the excitation of surface plasmon modes on both surfaces of the metallic film and their intercoupling effects. Here, we numerically study the EOT phenomenon from the incident light acting on the periodic subwavelength hybrid arrays in a metallic film, which contains annular concentric core and aperture unit structure undergoing multiple geometrical configurations. It is shown that several configurations, which consist of a core with a different number of apertures, of the unit structure, are possible to facilitate the intercoupling between the surface plasmon polariton resonance mode of the core and the localized surface plasmon resonance mode of the aperture. Moreover, taking advantage of the EOTeffect realized in the periodic structure arrays including a concentric core with triple-aperture unit structure, we propose a plasmonic optical filter (POF) in the near-infrared region. By adjusting both the periods and the width difference between the nearest-neighbor two apertures of the unit structure, the realization of near-infrared POF accompanies with tunable positions and amplitudes of the EOT peaks. Additionally, these behaviors could also be extended to the case of a concentric core with a multiple-aperture unit structure for actualizing near-or mid-infrared POF effect. Our results promise new avenues for plasmonic devices and enrich the application range of metallic structures in the field of optical communications and information processing.
机译:增强的光学传输(EOT),其来自与在金属膜中图案中图案化的亚波长纳米结构相互作用的入射光产生,展示了金属膜的两个表面上的表面等离子体模式的激发及其互动效应。这里,我们在数值上研究了来自作用在金属膜中的周期性亚波长杂交阵列上的入射光的EOT现象,其包含多个几何配置的环形同心芯和孔径单元结构。结果表明,几种构造,该构造包括单位结构的具有不同数量的孔径的芯,可以促进孔的表面等离子体偏振片谐振模式与孔径的局部表面等离子体谐振模式之间的互耦合。此外,利用包括具有三孔单元结构的同心芯的周期性结构阵列中实现的eOTEFFECT,我们提出了近红外区域中的等离子体滤光器(POF)。通过调节单元结构的最近邻接两个孔之间的周期和宽度差,利用可调谐位置和EOT峰的振幅实现近红外POF伴随的伴随。另外,这些行为也可以用多孔单元结构扩展到同心芯的情况,以实现近乎或中红外POF效果。我们的成果承诺为等离子体设备提供新的途径,丰富光通信和信息处理领域金属结构的应用范围。

著录项

  • 来源
    《Plasmonics》 |2019年第6期|共9页
  • 作者单位

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

    Univ South China Sch Elect Engn Hunan Prov Key Lab Ultra Fast Micro Nano Technol Hengyang 421001 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 物理学;
  • 关键词

    Plasmonic optical filter; Enhanced optical transmission; Interaction between light and metallic film;

    机译:等离子体滤光器;增强光传输;光和金属膜之间的相互作用;

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