Enantioselective optical gradient forces using 3D structured vortex light

Kayn A. Forbes; Dale Green

doi:10.1016/j.optcom.2022.128197

Enantioselective optical gradient forces using 3D structured vortex light

Kayn A. Forbes, Dale Green

Centre for Photonics and Quantum Science

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

14 Citations (Scopus)

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Abstract

Here we highlight enantioselective optical gradient forces present in 3D (non-paraxial) structured optical vortex tweezing systems. One chiral force originates from the circular polarization of the light, while remarkably the other is independent of the input polarization - even occurring for unpolarized light – and is not present in 2D structured light nor propagating plane waves. This latter chiral sorting mechanism allows for the enantioselective trapping of chiral particles into distinct rings in the transverse plane through conservative radial forces.

Original language	English
Article number	128197
Journal	Optics Communications
Volume	515
Early online date	16 Mar 2022
DOIs	https://doi.org/10.1016/j.optcom.2022.128197
Publication status	Published - 15 Jul 2022

Keywords

Chirality
Optical forces
Optical manipulation
Optical trapping
Optical vortex
Structured light

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10.1016/j.optcom.2022.128197Licence: CC BY

Forbes_Green_2022_OpticsCommsFinal published version, 993 KBLicence: CC BY

https://linkinghub.elsevier.com/retrieve/pii/S0030401822001687Licence: CC BY

Cite this

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title = "Enantioselective optical gradient forces using 3D structured vortex light",

abstract = "Here we highlight enantioselective optical gradient forces present in 3D (non-paraxial) structured optical vortex tweezing systems. One chiral force originates from the circular polarization of the light, while remarkably the other is independent of the input polarization - even occurring for unpolarized light – and is not present in 2D structured light nor propagating plane waves. This latter chiral sorting mechanism allows for the enantioselective trapping of chiral particles into distinct rings in the transverse plane through conservative radial forces.",

keywords = "Chirality, Optical forces, Optical manipulation, Optical trapping, Optical vortex, Structured light",

author = "Forbes, {Kayn A.} and Dale Green",

note = "Funding Information: KAF thanks the Leverhulme Trust for funding him through a Leverhulme Early Career Fellowship, UK (Grant Number ECF-2019-398 ).",

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T1 - Enantioselective optical gradient forces using 3D structured vortex light

AU - Forbes, Kayn A.

AU - Green, Dale

N1 - Funding Information: KAF thanks the Leverhulme Trust for funding him through a Leverhulme Early Career Fellowship, UK (Grant Number ECF-2019-398 ).

PY - 2022/7/15

Y1 - 2022/7/15

N2 - Here we highlight enantioselective optical gradient forces present in 3D (non-paraxial) structured optical vortex tweezing systems. One chiral force originates from the circular polarization of the light, while remarkably the other is independent of the input polarization - even occurring for unpolarized light – and is not present in 2D structured light nor propagating plane waves. This latter chiral sorting mechanism allows for the enantioselective trapping of chiral particles into distinct rings in the transverse plane through conservative radial forces.

AB - Here we highlight enantioselective optical gradient forces present in 3D (non-paraxial) structured optical vortex tweezing systems. One chiral force originates from the circular polarization of the light, while remarkably the other is independent of the input polarization - even occurring for unpolarized light – and is not present in 2D structured light nor propagating plane waves. This latter chiral sorting mechanism allows for the enantioselective trapping of chiral particles into distinct rings in the transverse plane through conservative radial forces.

KW - Chirality

KW - Optical forces

KW - Optical manipulation

KW - Optical trapping

KW - Optical vortex

KW - Structured light

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DO - 10.1016/j.optcom.2022.128197

M3 - Article

VL - 515

JO - Optics Communications

JF - Optics Communications

SN - 0030-4018

M1 - 128197

ER -

Enantioselective optical gradient forces using 3D structured vortex light

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Quantum theory for advanced molecular photonics: structured light and plasmonics

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Enantioselective optical gradient forces using 3D structured vortex light

Abstract

Keywords

Access to Document

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Quantum theory for advanced molecular photonics: structured light and plasmonics

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