...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Optics Letters >Scattering detection of a solenoidal Poynting vector field
【24h】

Scattering detection of a solenoidal Poynting vector field

机译：螺线管坡因廷矢量场的散射检测

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

The Poynting vector S plays a central role in electrodynamics as it is directly related to the power and the momentum carried by an electromagnetic wave. In the presence of multiple electromagnetic waves with different polarizations and propagation directions, the Poynting vector may exhibit solenoidal components which are not associated to any power flow. Here, we demonstrate theoretically and experimentally that the presence of such solenoidal components has physical consequences, and it is not a mere artifact of the gauge invariance of S. In particular, we identify a simple field configuration displaying solenoidal components of S and theoretically show that a judiciously designed scatterer can act as a "Poynting vector detector" which when immersed in such field distribution would experience a transverse optical force orthogonal to the incidence plane. We experimentally validate our theoretical predictions by observing a pronounced asymmetry in the scattering pattern of a spherical nanoparticle. (C) 2016 Optical Society of America
机译：坡印廷矢量S在电动力学中起着核心作用，因为它与电磁波所承载的功率和动量直接相关。在存在具有不同极化和传播方向的多个电磁波的情况下，Poynting向量可能表现出与任何功率流均不相关的螺线管分量。在这里，我们在理论上和实验上证明了此类螺线管组件的存在会带来物理后果，而不仅仅是S的规格不变性的假象。特别是，我们确定了显示S螺线管组件的简单磁场配置，并从理论上证明了一个经过精心设计的散射体可以充当“珀因廷矢量检测器”，当它浸入这种场分布时，它将经受与入射平面正交的横向光学力。我们通过观察球形纳米粒子的散射模式中明显的不对称性，通过实验验证了我们的理论预测。 （C）2016美国眼镜学会

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