Selectively steering photon spin angular momentum via electron-induced optical spin Hall effect

被引：23

作者：

Chi, Cheng ^{[1
,2
]}

Jiang, Qiao ^{[1
,2
]}

Liu, Zhixin ^{[1
,2
]}

Zheng, Liheng ^{[1
,2
]}

Jiang, Meiling ^{[1
,2
]}

Zhang, Han ^{[1
,2
]}

Lin, Feng ^{[1
,2
]}

Shen, Bo ^{[1
,2
]}

Fang, Zheyu ^{[1
]}

机构：

[1] Peking Univ, Yangtze Delta Inst Optoelect, Collaborat Innovat Ctr Quantum Matter, Sch Phys,State Key Lab Mesoscop Phys,Acad Adv Int, Beijing 100871, Peoples R China

[2] Peking Univ, Yangtze Delta Inst Optoelect, Minist Educ, Nanooptoelect Frontier Ctr, Beijing 100871, Peoples R China

来源：

SCIENCE ADVANCES | 2021年 / 7卷 / 18期

基金：

美国国家科学基金会; 北京市自然科学基金;

关键词：

QUANTUM TELEPORTATION; CATHODOLUMINESCENCE; METAMATERIAL; ENTANGLEMENT;

D O I：

10.1126/sciadv.abf8011

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

The development of the optical spin Hall effect (OSHE) realizes the splitting of different spin components, contributing to the manipulation of photon spin angular momentum that acts as the information carrier for quantum technology. However, OSHE with optical excitation lacks active control of photon angular momentum at deep subwavelength scale because of the optical diffraction limit. Here, we experimentally demonstrate a selective manipulation of photon spin angular momentum at a deep subwavelength scale via electron-induced OSHE in Au nanoantennas. The inversion of the OSHE radiation pattern is observed by angle-resolved cathodoluminescence polarimetry with the electron impact position shifting within 80 nm in a single antenna unit. By this selective steering of photon spin, we propose an information encoding with robustness, privacy, and high level of integration at a deep subwavelength scale for the future quantum applications.

引用

页数：8

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