Plasmon-Enhanced Spin-Orbit Interaction of Light in Graphene

被引：12

作者：

Ciattoni, Alessandro ^{[1
]}

Rizza, Carlo ^{[1
]}

Lee, Ho Wai Howard ^{[2
]}

Conti, Claudio ^{[3
,4
]}

Marini, Andrea ^{[5
]}

机构：

[1] CNR, SPIN, Via Vetoio 10, I-67100 Laquila, Italy

[2] Baylor Univ, Dept Phys, Waco, TX 76798 USA

[3] CNR, ISC, Via Taurini 19, I-00185 Rome, Italy

[4] Univ Sapienza, Dept Phys, Piazzale Aldo Moro 5, I-00185 Rome, Italy

[5] Univ Aquila, Dept Phys & Chem Sci, Via Vetoio 10, I-67100 Laquila, Italy

来源：

LASER & PHOTONICS REVIEWS | 2018年 / 12卷 / 10期

基金：

欧盟地平线“2020”;

关键词：

2D materials; plasmonics; singular optics; vortices; ANGULAR-MOMENTUM; MANIPULATION; BEAMS; TRANSMISSION; SCATTERING; PHOTONS; MEDIA; ATOMS; MODES;

D O I：

10.1002/lpor.201800140

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel theoretical framework is developed describing polariton-enhanced spin-orbit interaction (SOI) of light on the surface of 2D media. The reduced dimensionality of the system is exploited to introduce a quantum-like formalism particularly suitable to fully take advantage of rotational invariance. Conservation of total angular momentum upon scattering enables the physical unveiling of the interaction between radiation and the 2D material along with the detailed exchange processes among orbital and spin components. In addition, the formalism is specialized to doped extended graphene, finding such an SOI to be dramatically enhanced by the excitation of plasmons propagating radially along the graphene sheet. Several examples of the enormous possibilities offered by plasmon-enhanced SOI of light are provided including vortex generation, mixing, and engineering of tunable deep subwavelength arrays of optical traps in the near field.

引用

页数：12

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