Simultaneous measurement of nanoscale electric and magnetic optical fields
Simultaneous measurement of nanoscale electric and magnetic optical fields
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DOI：
10.1038/nphoton.2013.323
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发表时间：
2014-01-01
期刊：
影响因子：
35
通讯作者：
Kuipers, L.
中科院分区：
文献类型：
--
作者：
le Feber, B.;Rotenberg, N.;Kuipers, L.
在纳米尺度上控制光-物质相互作用具有先进的领域，如量子光学（1），光子学（2）和电信（3）。这些进步是由对光的纳米级行为的更好理解驱动的，这是通过直接观察光子纳米结构附近的局部电场实现的（4-6）。随着对光的磁分量做出响应的超材料的出现（7，8），已经开发出测量纳米级磁场的方案（9-12）。然而，这些结构不仅与磁场相互作用，还与光的电场相互作用。在这里，我们展示了基本的同时检测的电场和磁场的亚波长分辨率。通过解释我们的测量通过互惠的考虑，我们创建了一个路线，对设计探头敏感的特定所需的组合的电场和磁场分量。同时获得纳米级电场和磁场将为光学纳米结构和超材料的新设计铺平道路。
Control of light-matter interactions at the nanoscale has advanced fields such as quantum optics(1), photovoltaics(2) and telecommunications(3). These advances are driven by an improved understanding of the nanoscale behaviour of light, enabled by direct observations of the local electric fields near photonic nanostructures(4-6). With the advent of metamaterials that respond to the magnetic component of light(7,8), schemes have been developed to measure the nanoscale magnetic field(9-12) . However, these structures interact not only with the magnetic field, but also with the electric field of light. Here, we demonstrate the essential simultaneous detection of both electric and magnetic fields with subwavelength resolution. By explaining our measurements through reciprocal considerations, we create a route towards designing probes sensitive to specific desired combinations of electric and magnetic field components. Simultaneous access to nanoscale electric and magnetic fields will pave the way for new designs of optical nanostructures and metamaterials.