Lateral chirality-sorting optical forces

被引：222

作者：

Hayat, Amaury ^{[1
,2
]}

Mueller, J. P. Balthasar ^{[1
]}

Capasso, Federico ^{[1
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Ecole Polytech, F-91120 Palaiseau, France

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2015年 / 112卷 / 43期

关键词：

optical forces; chirality; optical spin-momentum locking; optical spin-orbit interaction; optical spin; MOLECULES; MOMENTUM; SPIN;

D O I：

10.1073/pnas.1516704112

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 transverse component of the spin angular momentum of evanescent waves gives rise to lateral optical forces on chiral particles, which have the unusual property of acting in a direction in which there is neither a field gradient nor wave propagation. Because their direction and strength depends on the chiral polarizability of the particle, they act as chirality-sorting and may offer a mechanism for passive chirality spectroscopy. The absolute strength of the forces also substantially exceeds that of other recently predicted sideways optical forces.

引用

页码：13190 / 13194

页数：5

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