Electromagnetic wave propagating along a space curve

被引：13
|
作者：
Lai, Meng-Yun [1 ]
Wang, Yong-Long [2 ,3 ,4 ]
Liang, Guo-Hua [5 ]
Wang, Fan [1 ]
Zong, Hong-Shi [1 ,6 ,7 ]
机构：
[1] Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
[2] Nanjing Univ, Dept Mat Sci & Engn, Natl Lab Solid State Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[3] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
[4] Linyi Univ, Sch Phys & Elect Engn, Linyi 276005, Peoples R China
[5] Nanjing Univ, Coll Engn & Appl Sci, Nanjing 210093, Jiangsu, Peoples R China
[6] Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
[7] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
来源：
PHYSICAL REVIEW A | 2018年 / 97卷 / 03期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
QUANTUM-MECHANICS; ANGULAR-MOMENTUM; OPTICAL-FIBERS; LIGHT; POLARIZATION; ROTATION; GUIDE;
D O I：
10.1103/PhysRevA.97.033843
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
By using the thin-layer approach, we derive the effective equation for the electromagnetic wave propagating along a space curve. We find intrinsic spin-orbit, extrinsic spin-orbit, and extrinsic orbital angular-momentum and intrinsic orbital angular-momentum couplings induced by torsion, which can lead to geometric phase, spin, and orbital Hall effects. And we show the helicity inversion induced by curvature that can convert a right-handed circularly polarized electromagnetic wave into a left-handed polarized one, vice versa. Finally, we demonstrate that the gauge invariance of the effective dynamics is protected by the geometrically induced gauge potential.
引用
收藏
页数：6
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