A Compound Phase-Modulated Beam Splitter to Distinguish Both Spin and Orbital Angular Momentum,ACS Photonics

当前位置： X-MOL 学术 › ACS Photonics › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

A Compound Phase-Modulated Beam Splitter to Distinguish Both Spin and Orbital Angular Momentum
ACS Photonics ( IF 6.5 ) Pub Date : 2019-12-23 , DOI: 10.1021/acsphotonics.9b01437
Xuesi Zhao ₁ , Xue Feng ₁ , Fang Liu ₁ , Kaiyu Cui ₁ , Wei Zhang ₁ , Yidong Huang ₁

Affiliation

Based on a phase-modulated metallic nanoslit array, an angular momentum (AM) beam splitter has been demonstrated to distinguish both spin and orbital components carried by the light beam. With such a device, the AM modes could be coupled into nondiffracting surface plasmonic beams propagating toward different directions. According to the experimental results, the extinction ratio for spin AM beam splitting is larger than 10 and the spatial interval of adjacent orbital AM modes (with a topological charge interval of 2) is more than 1.1 μm. We believe that such a device would have great potential to achieve a highly compact photonic integrated circuit with the plasmonic beam.

中文翻译：

能够分辨自旋角动量和轨道角动量的复合相位调制分束器

基于相位调制的金属纳米狭缝阵列，已证明角动量（AM）分束器可区分光束所携带的自旋分量和轨道分量。使用这种设备，AM模式可以耦合到向不同方向传播的非衍射表面等离激元束中。根据实验结果，自旋AM光束分裂的消光比大于10，相邻轨道AM模式的空间间隔（拓扑电荷间隔为2）大于1.1μm。我们相信，这样的设备将具有巨大的潜力，可以实现具有等离激元束的高度紧凑的光子集成电路。

更新日期：2019-12-25

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11