Spin-Orbit Coupling and the Optical Spin Hall Effect in Photonic Graphene

被引：107

作者：

Nalitov, A. V. ^{[1
]}

Malpuech, G. ^{[1
]}

Tercas, H. ^{[1
]}

Solnyshkov, D. D. ^{[1
]}

机构：

[1] Univ Blaise Pascal, Univ Clermont Ferrand 2, PHOTON N2, Inst Pascal,CNRS, F-63177 Aubiere, France

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 02期

关键词：

Dirac point - Effective Hamiltonian - Honeycomb lattices - Optical modes - Optical spin Hall effect - Tight-binding approaches;

D O I：

10.1103/PhysRevLett.114.026803

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the spin-orbit coupling induced by the splitting between TE and TM optical modes in a photonic honeycomb lattice. Using a tight-binding approach, we calculate analytically the band structure. Close to the Dirac point, we derive an effective Hamiltonian. We find that the local reduced symmetry (D-3h) transforms the TE-TM effective magnetic field into an emergent field with a Dresselhaus symmetry. As a result, particles become massive, but no gap opens. The emergent field symmetry is revealed by the optical spin Hall effect.

引用

页数：5

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