Optical tweezers with increased axial trapping efficiency

N. B. Simpson, D. McGloin, K. Dholakia, L. Allen, M. J. Padgett

Research output: Contribution to journalArticle

110 Citations (Scopus)

Abstract

We demonstrate that the axial trapping efficiency in optical tweezers is improved by using a Laguerre-Gaussian laser mode as the trapping beam. For a wide range of particle sizes and sample cell depths, the laser power required with an l = 3 Laguerre-Gaussian mode is reduced by a factor of two compared with that of the fundamental mode. This is important for biological applications where a reduction in the laser power lessens the risk of damage to living samples.

Original languageEnglish
Pages (from-to)1943-1949
Number of pages7
JournalJournal of Modern Optics
Volume45
Issue number9
DOIs
Publication statusPublished - 1998 Sep

Fingerprint

trapping
laser modes
lasers
damage
cells

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Simpson, N. B. ; McGloin, D. ; Dholakia, K. ; Allen, L. ; Padgett, M. J. / Optical tweezers with increased axial trapping efficiency. In: Journal of Modern Optics. 1998 ; Vol. 45, No. 9. pp. 1943-1949.
@article{c40c60ba2ae241799b595e5442e8a866,
title = "Optical tweezers with increased axial trapping efficiency",
abstract = "We demonstrate that the axial trapping efficiency in optical tweezers is improved by using a Laguerre-Gaussian laser mode as the trapping beam. For a wide range of particle sizes and sample cell depths, the laser power required with an l = 3 Laguerre-Gaussian mode is reduced by a factor of two compared with that of the fundamental mode. This is important for biological applications where a reduction in the laser power lessens the risk of damage to living samples.",
author = "Simpson, {N. B.} and D. McGloin and K. Dholakia and L. Allen and Padgett, {M. J.}",
year = "1998",
month = "9",
doi = "10.1080/09500349808231712",
language = "English",
volume = "45",
pages = "1943--1949",
journal = "Journal of Modern Optics",
issn = "0950-0340",
publisher = "Taylor and Francis Ltd.",
number = "9",

}

Simpson, NB, McGloin, D, Dholakia, K, Allen, L & Padgett, MJ 1998, 'Optical tweezers with increased axial trapping efficiency', Journal of Modern Optics, vol. 45, no. 9, pp. 1943-1949. https://doi.org/10.1080/09500349808231712

Optical tweezers with increased axial trapping efficiency. / Simpson, N. B.; McGloin, D.; Dholakia, K.; Allen, L.; Padgett, M. J.

In: Journal of Modern Optics, Vol. 45, No. 9, 09.1998, p. 1943-1949.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Optical tweezers with increased axial trapping efficiency

AU - Simpson, N. B.

AU - McGloin, D.

AU - Dholakia, K.

AU - Allen, L.

AU - Padgett, M. J.

PY - 1998/9

Y1 - 1998/9

N2 - We demonstrate that the axial trapping efficiency in optical tweezers is improved by using a Laguerre-Gaussian laser mode as the trapping beam. For a wide range of particle sizes and sample cell depths, the laser power required with an l = 3 Laguerre-Gaussian mode is reduced by a factor of two compared with that of the fundamental mode. This is important for biological applications where a reduction in the laser power lessens the risk of damage to living samples.

AB - We demonstrate that the axial trapping efficiency in optical tweezers is improved by using a Laguerre-Gaussian laser mode as the trapping beam. For a wide range of particle sizes and sample cell depths, the laser power required with an l = 3 Laguerre-Gaussian mode is reduced by a factor of two compared with that of the fundamental mode. This is important for biological applications where a reduction in the laser power lessens the risk of damage to living samples.

UR - http://www.scopus.com/inward/record.url?scp=0032165755&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032165755&partnerID=8YFLogxK

U2 - 10.1080/09500349808231712

DO - 10.1080/09500349808231712

M3 - Article

AN - SCOPUS:0032165755

VL - 45

SP - 1943

EP - 1949

JO - Journal of Modern Optics

JF - Journal of Modern Optics

SN - 0950-0340

IS - 9

ER -