Optical solenoid beams

被引：184

作者：

Lee, Sang-Hyuk ^{[1
]}

Roichman, Yohai ^{[2
,3
]}

Grier, David G. ^{[2
,3
]}

机构：

[1] Univ Calif Berkeley, Dept Mol & Cell Biol, Inst Quantitat Biol, Berkeley, CA 94720 USA

[2] NYU, Dept Phys, New York, NY 10003 USA

[3] NYU, Ctr Soft Matter Res, New York, NY 10003 USA

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 07期

基金：

美国国家科学基金会;

关键词：

NONDIFFRACTING BEAMS; DIFFRACTIVE OPTICS; LIGHT-BEAM; TRAPS; FIELDS; MICROMANIPULATION;

D O I：

10.1364/OE.18.006988

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce optical solenoid beams, diffractionless solutions of the Helmholtz equation whose diffraction-limited in-plane intensity peak spirals around the optical axis, and whose wavefronts carry an independent helical pitch. Unlike other collimated beams of light, appropriately designed solenoid beams have the noteworthy property of being able to exert forces on illuminated objects that are directed opposite to the direction of the light's propagation. We demonstrate this through video microscopy observations of a colloidal sphere moving upstream along a holographically projected optical solenoid beam.

引用

页码：6988 / 6993

页数：6

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