Imaging in optical micromanipulation using two-photon excitation

K. Dholakia, H. Little, C. T.A. Brown, B. Agate, D. McGloin, L. Paterson, W. Sibbett

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Recent studies have realized optical micromanipulation of extended two- and three-dimensional structures and optical binding. In many recent experiments the optical interaction between particles and their light scattering has played a key role. We use fluorescein dye within the sample medium and a femtosecond laser for optical micromanipulation. By the process of two-photon excitation we can directly observe how the light behaves during refraction and reflection within a sample of optically guided microspheres. We directly visualize the reconstruction of the Bessel light beam by excitation of two-photon fluorescence when used as an optical guide for microscopic particles dispersed within this dyed medium. This technique may assist in the visualization of optical scattering and refraction in micromanipulation and the creation of large optically bound matter crystals.

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalNew Journal of Physics
Volume6
DOIs
Publication statusPublished - 2004 Oct 21

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refraction
photons
light beams
excitation
light scattering
dyes
fluorescence
scattering
crystals
lasers
interactions

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Dholakia, K., Little, H., Brown, C. T. A., Agate, B., McGloin, D., Paterson, L., & Sibbett, W. (2004). Imaging in optical micromanipulation using two-photon excitation. New Journal of Physics, 6, 1-8. https://doi.org/10.1088/1367-2630/6/1/136
Dholakia, K. ; Little, H. ; Brown, C. T.A. ; Agate, B. ; McGloin, D. ; Paterson, L. ; Sibbett, W. / Imaging in optical micromanipulation using two-photon excitation. In: New Journal of Physics. 2004 ; Vol. 6. pp. 1-8.
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Dholakia, K, Little, H, Brown, CTA, Agate, B, McGloin, D, Paterson, L & Sibbett, W 2004, 'Imaging in optical micromanipulation using two-photon excitation', New Journal of Physics, vol. 6, pp. 1-8. https://doi.org/10.1088/1367-2630/6/1/136

Imaging in optical micromanipulation using two-photon excitation. / Dholakia, K.; Little, H.; Brown, C. T.A.; Agate, B.; McGloin, D.; Paterson, L.; Sibbett, W.

In: New Journal of Physics, Vol. 6, 21.10.2004, p. 1-8.

Research output: Contribution to journalArticle

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