Gold Nanoparticles as Probes for Nano-Raman Spectroscopy : Preliminary Experimental Results and Modeling
Joint Authors
Minea, T.
Le Nader, V.
Mevellec, J.-Y.
Louarn, G.
Source
International Journal of Optics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-03-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper presents an effective Tip-Enhanced Raman Spectrometer (TERS) in backscattering reflection configuration.
It combines a tip-probe nanopositioning system with Raman spectroscope.
Specific tips were processed by anchoring gold nanoparticles on the apex of tapered optical fibers, prepared by an improved chemical etching method.
Hence, it is possible to expose a very small area of the sample (~20 nm2) to the very strong local electromagnetic field generated by the lightning rod effect.
This experimental configuration was modelled and optimised using the finite element method, which takes into account electromagnetic effects as well as the plasmon resonance.
Finally, TERS measurements on single-wall carbon nanotubes were successfully performed.
These results confirm the high Raman scattering enhancement predicted by the modelling, induced by our new nano-Raman device.
American Psychological Association (APA)
Le Nader, V.& Mevellec, J.-Y.& Minea, T.& Louarn, G.. 2012. Gold Nanoparticles as Probes for Nano-Raman Spectroscopy : Preliminary Experimental Results and Modeling. International Journal of Optics،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-483308
Modern Language Association (MLA)
Le Nader, V.…[et al.]. Gold Nanoparticles as Probes for Nano-Raman Spectroscopy : Preliminary Experimental Results and Modeling. International Journal of Optics No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-483308
American Medical Association (AMA)
Le Nader, V.& Mevellec, J.-Y.& Minea, T.& Louarn, G.. Gold Nanoparticles as Probes for Nano-Raman Spectroscopy : Preliminary Experimental Results and Modeling. International Journal of Optics. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-483308
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483308