Optical solenoid beams

Sang Hyuk Lee; Yohai Roichman; David G. Grier

doi:10.1364/OE.18.006988

Optical solenoid beams

Sang Hyuk Lee, Yohai Roichman, David G. Grier

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English (US)
Pages (from-to)	6988-6993
Number of pages	6
Journal	Optics Express
Volume	18
Issue number	7
DOIs	https://doi.org/10.1364/OE.18.006988
State	Published - Mar 29 2010

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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