Flexible particle manipulation techniques with conical refraction based optical tweezers

Craig McDougall; Robert Henderson; David J. Carnegie; Grigorii S. Sokolovskii; Edik U. Rafailov; David McGloin

doi:10.1117/12.948748

Flexible particle manipulation techniques with conical refraction based optical tweezers

Craig McDougall^*, Robert Henderson, David J. Carnegie, Grigorii S. Sokolovskii, Edik U. Rafailov, David McGloin

^*Corresponding author for this work

Physics

Research output: Chapter in Book/Report/Conference proceeding › Published conference contribution

10 Citations (Scopus)

Abstract

We present an optimized optical tweezers system based upon the conical refraction of circularly polarized light in a biaxial crystal. The described optical arrangement avoids distortions to the Lloyd plane rings that become apparent when working with circularly polarized light in conventional optical tweezers. We demonstrate that the intensity distribution of the conically diffracted light permits optical manipulation of high and low refractive index particles simultaneously. Such trapping is in three dimensions and not limited to the Lloyd plane rings. By removal of a quarter waveplate the system also permits the study of linearly polarized conical refraction. We show that particle position in the Raman plane is determined by beam power, and indicates that true optical tweezing is not taking place in this part of the beam.

Original language	English
Title of host publication	Proceedings: Optical Trapping and Optical Micromanipulation IX
Publisher	SPIE
Volume	8458
ISBN (Print)	9780819491756
DOIs	https://doi.org/10.1117/12.948748
Publication status	Published - 10 Oct 2012
Event	SPIE NanoScience + Engineering : Optical Trapping and Optical Micromanipulation IX - San Diego, CA, United States Duration: 12 Aug 2012 → 16 Aug 2012

Conference

Conference	SPIE NanoScience + Engineering
Country/Territory	United States
City	San Diego, CA
Period	12/08/12 → 16/08/12

Keywords

Aerosols
Biaxial crystal
Conical refraction
Optical tweezers
Polarization

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10.1117/12.948748

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McDougall, C, Henderson, R, Carnegie, DJ, Sokolovskii, GS, Rafailov, EU & McGloin, D 2012, Flexible particle manipulation techniques with conical refraction based optical tweezers. in Proceedings: Optical Trapping and Optical Micromanipulation IX. vol. 8458, 845824, SPIE, SPIE NanoScience + Engineering , San Diego, CA, United States, 12/08/12. https://doi.org/10.1117/12.948748

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title = "Flexible particle manipulation techniques with conical refraction based optical tweezers",

abstract = "We present an optimized optical tweezers system based upon the conical refraction of circularly polarized light in a biaxial crystal. The described optical arrangement avoids distortions to the Lloyd plane rings that become apparent when working with circularly polarized light in conventional optical tweezers. We demonstrate that the intensity distribution of the conically diffracted light permits optical manipulation of high and low refractive index particles simultaneously. Such trapping is in three dimensions and not limited to the Lloyd plane rings. By removal of a quarter waveplate the system also permits the study of linearly polarized conical refraction. We show that particle position in the Raman plane is determined by beam power, and indicates that true optical tweezing is not taking place in this part of the beam.",

keywords = "Aerosols, Biaxial crystal, Conical refraction, Optical tweezers, Polarization",

author = "Craig McDougall and Robert Henderson and Carnegie, {David J.} and Sokolovskii, {Grigorii S.} and Rafailov, {Edik U.} and David McGloin",

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booktitle = "Proceedings: Optical Trapping and Optical Micromanipulation IX",

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T1 - Flexible particle manipulation techniques with conical refraction based optical tweezers

AU - McDougall, Craig

AU - Henderson, Robert

AU - Carnegie, David J.

AU - Sokolovskii, Grigorii S.

AU - Rafailov, Edik U.

AU - McGloin, David

PY - 2012/10/10

Y1 - 2012/10/10

N2 - We present an optimized optical tweezers system based upon the conical refraction of circularly polarized light in a biaxial crystal. The described optical arrangement avoids distortions to the Lloyd plane rings that become apparent when working with circularly polarized light in conventional optical tweezers. We demonstrate that the intensity distribution of the conically diffracted light permits optical manipulation of high and low refractive index particles simultaneously. Such trapping is in three dimensions and not limited to the Lloyd plane rings. By removal of a quarter waveplate the system also permits the study of linearly polarized conical refraction. We show that particle position in the Raman plane is determined by beam power, and indicates that true optical tweezing is not taking place in this part of the beam.

AB - We present an optimized optical tweezers system based upon the conical refraction of circularly polarized light in a biaxial crystal. The described optical arrangement avoids distortions to the Lloyd plane rings that become apparent when working with circularly polarized light in conventional optical tweezers. We demonstrate that the intensity distribution of the conically diffracted light permits optical manipulation of high and low refractive index particles simultaneously. Such trapping is in three dimensions and not limited to the Lloyd plane rings. By removal of a quarter waveplate the system also permits the study of linearly polarized conical refraction. We show that particle position in the Raman plane is determined by beam power, and indicates that true optical tweezing is not taking place in this part of the beam.

KW - Aerosols

KW - Biaxial crystal

KW - Conical refraction

KW - Optical tweezers

KW - Polarization

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DO - 10.1117/12.948748

M3 - Published conference contribution

AN - SCOPUS:84872063022

SN - 9780819491756

VL - 8458

BT - Proceedings: Optical Trapping and Optical Micromanipulation IX

PB - SPIE

T2 - SPIE NanoScience + Engineering

Y2 - 12 August 2012 through 16 August 2012

ER -

Flexible particle manipulation techniques with conical refraction based optical tweezers

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Keywords

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