Switching the direction of spin accumulation in the spin Hall effect of light by adjusting the optical axis of an uniaxial crystal

We theoretically and experimentally investigate a switchable spin Hall effect（SHE） of light in reflection near the Brewster angle at an air-uniaxial crystal interface.We find a large transverse spin splitting near the Brewster angle,whose sign can be altered by rotating the optical axis.As an analog...

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Bibliographic Details
Published inChinese physics B Vol. 22; no. 3; pp. 301 - 304
Main Author 唐明 周新星 肖志成 罗海陆 文双春
Format Journal Article
LanguageEnglish
Published 01.03.2013
Subjects
Adjustment
Analogies
Brewster angle
Crystals
Electronic systems
Hall effect
Photons
Reflection
Switches
光子器件
光轴角
单轴晶体
布儒斯特角
累积
自旋分裂
调整
霍尔效应开关
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Summary:We theoretically and experimentally investigate a switchable spin Hall effect（SHE） of light in reflection near the Brewster angle at an air-uniaxial crystal interface.We find a large transverse spin splitting near the Brewster angle,whose sign can be altered by rotating the optical axis.As an analogy of the SHE in an electronic system,a switchable spin accumulation in the SHE of light is detected.We are able to switch the direction of the spin accumulation by adjusting the optical axis angle of the uniaxial crystal.These findings may give opportunities for photon spin manipulating and developing a new generation of nano-photonic devices.
Bibliography:Tang Ming , Zhou Xin-Xing , Xiao Zhi-Cheng , Luo Hai-Lu , Wen Shuang-Chun（ Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Information Science and Engineering）
We theoretically and experimentally investigate a switchable spin Hall effect（SHE） of light in reflection near the Brewster angle at an air-uniaxial crystal interface.We find a large transverse spin splitting near the Brewster angle,whose sign can be altered by rotating the optical axis.As an analogy of the SHE in an electronic system,a switchable spin accumulation in the SHE of light is detected.We are able to switch the direction of the spin accumulation by adjusting the optical axis angle of the uniaxial crystal.These findings may give opportunities for photon spin manipulating and developing a new generation of nano-photonic devices.
11-5639/O4
spin Hall effect of light,spin accumulation,uniaxial crystal,transverse displacement
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/22/3/034101