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

Jordan, P. and Cooper, J. and McNay, G. and Docherty, F.T. and Graham, D. and Smith, W.E. and Sinclair, G. and Padgett, M.J. (2005) Surface-enhanced resonance Raman scattering in optical tweezers using co-axial second harmonic generation. Optics Express, 13 (11). pp. 4148-4153. ISSN 1094-4087

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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: Article
ID code: 1158
Keywords: optical confinement and manipulation, frequency conversion, surface plasmons, scattering, raman, Chemistry, Optics. Light
Subjects: Science > Chemistry
Science > Physics > Optics. Light
Department: Faculty of Science > Pure and Applied Chemistry
Unknown Department
Related URLs:
Depositing user: Mr Derek Boyle
Date Deposited: 22 May 2006
Last modified: 16 Jul 2013 18:55
URI: http://strathprints.strath.ac.uk/id/eprint/1158

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