Surface-enhanced resonance Raman scattering in optical tweezers using co-axial second harmonic generation

Jordan, P., Cooper, J. , McNay, G., Docherty, F. T. , Graham, D., Smith, W. E., Sinclair, G. and Padgett, M. J. (2005) Surface-enhanced resonance Raman scattering in optical tweezers using co-axial second harmonic generation. Optics Express, 13, pp. 4148-4153. (doi:10.1364/OPEX.13.004148) (PMID:19495327)

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Abstract

Silica particles were partially coated with silver, and a suitable chromophore, such that they could be trapped within an optical tweezers system and simultaneously be excited to emit a surface–enhanced resonance Raman scattering (SERRS) spectrum. A standard 1064 nm TEM00 mode laser was used to trap the bead whilst a frequency doubling crystal inserted into the beam gave several microwatts of 532 nm co-linear light to excite the SERRS emission. The configuration has clear applications in providing apparatus that can manipulate a particle whilst simultaneously obtaining surface sensitive sensory information.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Docherty, Dr Frances and Cooper, Professor Jonathan and Padgett, Professor Miles
Authors: Jordan, P., Cooper, J., McNay, G., Docherty, F. T., Graham, D., Smith, W. E., Sinclair, G., and Padgett, M. J.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087

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