共 43 条
Lateral chirality-sorting optical forces
被引:233
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:
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.
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页码:13190 / 13194
页数:5
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