Aerosol tweezing with a super-continuum laser beam

Marc Guillon; Kishan Dholakia; David McGloin

doi:10.1117/12.793726

Aerosol tweezing with a super-continuum laser beam

Marc Guillon, Kishan Dholakia, David McGloin

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

Abstract

Aerosol tweezing with a super-continuum laser source has been successfully demonstrated. Salt-water droplets in the range between 3 and 7 microns in diameters are trapped with a 300nm-wide super-continuum spectrum. As the spectrum covers a few Mie resonances, the optical force is averaged and the trapping efficiency varies smoothly with the square of the radius a in the case of the ray optics approximation. On-axis elastically back scattered spectrum allows a direct and precise determination of the trapped droplet. Evaporation of a single droplet is precisely followed using this method. Alternative spectroscopic droplet sizing techniques are proposed and discussed.

Original language	English
Title of host publication	Optical Trapping and Optical Micromanipulation V
Editors	Kishan Dholakia, Gabriel C. Spalding
Place of Publication	Bellingham
Publisher	SPIE-International Society for Optical Engineering
Number of pages	9
ISBN (Print)	9780819472588
DOIs	https://doi.org/10.1117/12.793726
Publication status	Published - 2008
Event	SPIE Optics+Photonics 2008: Optical Trapping and Optical Micromanipulation V - San Diego Convention Center, San Diego, United States Duration: 10 Aug 2008 → 13 Aug 2008 http://spie.org/x27421.xml

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	7038

Conference

Conference	SPIE Optics+Photonics 2008: Optical Trapping and Optical Micromanipulation V
Abbreviated title	http://spie.org/x27421.xml
Country/Territory	United States
City	San Diego
Period	10/08/08 → 13/08/08
Internet address	http://spie.org/x27421.xml

Keywords

Optical tweezers
aerosols
supercontinuum laser
spectroscopy

Access to Document

10.1117/12.793726

Cite this

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title = "Aerosol tweezing with a super-continuum laser beam",

abstract = "Aerosol tweezing with a super-continuum laser source has been successfully demonstrated. Salt-water droplets in the range between 3 and 7 microns in diameters are trapped with a 300nm-wide super-continuum spectrum. As the spectrum covers a few Mie resonances, the optical force is averaged and the trapping efficiency varies smoothly with the square of the radius a in the case of the ray optics approximation. On-axis elastically back scattered spectrum allows a direct and precise determination of the trapped droplet. Evaporation of a single droplet is precisely followed using this method. Alternative spectroscopic droplet sizing techniques are proposed and discussed.",

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booktitle = "Optical Trapping and Optical Micromanipulation V",

note = "SPIE Optics+Photonics 2008: Optical Trapping and Optical Micromanipulation V, http://spie.org/x27421.xml ; Conference date: 10-08-2008 Through 13-08-2008",

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Guillon, M, Dholakia, K & McGloin, D 2008, Aerosol tweezing with a super-continuum laser beam. in K Dholakia & GC Spalding (eds), Optical Trapping and Optical Micromanipulation V., 70381Q, Proceedings of SPIE, vol. 7038, SPIE-International Society for Optical Engineering, Bellingham, SPIE Optics+Photonics 2008: Optical Trapping and Optical Micromanipulation V, San Diego, United States, 10/08/08. https://doi.org/10.1117/12.793726

Aerosol tweezing with a super-continuum laser beam. / Guillon, Marc; Dholakia, Kishan; McGloin, David.
Optical Trapping and Optical Micromanipulation V. ed. / Kishan Dholakia; Gabriel C. Spalding. Bellingham: SPIE-International Society for Optical Engineering, 2008. 70381Q (Proceedings of SPIE; Vol. 7038).

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

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T1 - Aerosol tweezing with a super-continuum laser beam

AU - Guillon, Marc

AU - Dholakia, Kishan

AU - McGloin, David

PY - 2008

Y1 - 2008

N2 - Aerosol tweezing with a super-continuum laser source has been successfully demonstrated. Salt-water droplets in the range between 3 and 7 microns in diameters are trapped with a 300nm-wide super-continuum spectrum. As the spectrum covers a few Mie resonances, the optical force is averaged and the trapping efficiency varies smoothly with the square of the radius a in the case of the ray optics approximation. On-axis elastically back scattered spectrum allows a direct and precise determination of the trapped droplet. Evaporation of a single droplet is precisely followed using this method. Alternative spectroscopic droplet sizing techniques are proposed and discussed.

AB - Aerosol tweezing with a super-continuum laser source has been successfully demonstrated. Salt-water droplets in the range between 3 and 7 microns in diameters are trapped with a 300nm-wide super-continuum spectrum. As the spectrum covers a few Mie resonances, the optical force is averaged and the trapping efficiency varies smoothly with the square of the radius a in the case of the ray optics approximation. On-axis elastically back scattered spectrum allows a direct and precise determination of the trapped droplet. Evaporation of a single droplet is precisely followed using this method. Alternative spectroscopic droplet sizing techniques are proposed and discussed.

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KW - aerosols

KW - supercontinuum laser

KW - spectroscopy

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DO - 10.1117/12.793726

M3 - Conference contribution

SN - 9780819472588

T3 - Proceedings of SPIE

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A2 - Dholakia, Kishan

A2 - Spalding, Gabriel C.

PB - SPIE-International Society for Optical Engineering

CY - Bellingham

T2 - SPIE Optics+Photonics 2008: Optical Trapping and Optical Micromanipulation V

Y2 - 10 August 2008 through 13 August 2008

ER -

Aerosol tweezing with a super-continuum laser beam

Abstract

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Conference

Keywords

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