首页> 美国卫生研究院文献>Beilstein Journal of Nanotechnology >Excitation of nonradiating magnetic anapole states with azimuthally polarized vector beams
【2h】

Excitation of nonradiating magnetic anapole states with azimuthally polarized vector beams

机译:方位角极化矢量束激发非辐射磁偶极态

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Nonradiating current configurations have been drawing the attention of the physics community for many years. It has been demonstrated recently that dielectric nanoparticles provide a unique platform to host such nonradiating modes, called “anapoles”. Here we study theoretically the excitation of such exotic anapole modes in silicon nanoparticles using structured light. Alternative illumination configurations, properly designed, are able to unlock hidden behavior of scatterers. Particularly, azimuthally polarized focused beams enable us to excite ideal anapole modes of magnetic type in dielectric nanoparticles. Firstly, we perform the decomposition of this type of excitation into its multipolar content and then we employ the T-matrix method to calculate the far-field scattering properties of nanoparticles illuminated by such beams. We propose several configuration schemes where magnetic anapole modes of simple or hybrid nature can be detected in silicon nanospheres, nanodisks and nanopillars.
机译:多年来,无辐射的当前配置已引起物理学界的关注。最近已经证明,介电纳米粒子提供了一个独特的平台来承载这种称为“偶极子”的非辐射模式。在这里,我们从理论上研究使用结构化光在硅纳米颗粒中激发这种奇特的偶极子模式。适当设计的替代照明配置能够释放散射体的隐藏行为。特别是,方位极化的聚焦光束使我们能够激发介电纳米粒子中理想的磁性磁偶极子模式。首先,我们将这种类型的激发分解成其多极含量,然后采用T-矩阵方法来计算这种光束照射的纳米粒子的远场散射特性。我们提出了几种配置方案,其中可以在硅纳米球,纳米盘和纳米柱中检测到简单或混合性质的磁偶极子模式。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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