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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/240058
- Title
- Laser fabricated ripple substrates for surface-enhanced Raman scattering
- Author(s)
- Buividas; Stoddart, Paul R.; Juodkazis, Saulius
- Abstract
- Femtosecond laser fabricated surface nanograting structures, referred to as ripples, are proposed as efficient substrates for surface-enhanced Raman scattering (SERS). Ripple substrates show order of magnitude higher sensitivity and superior reproducibility as compared to lithographically made commercial SERS sensing substrates. It is demonstrated that the SERS intensity from ripple substrates scales with the thickness of the Au coating. Ag coating on sapphire ripples showed > 2000 times higher sensitivity as compared to the same coating on the flat sapphire surface. The period, duty cycle and aspect ratio of the ripple textures can be adjusted by laser ablation conditions, which could be used for plasmon resonance tuning.
- Publication type
- Journal article
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics
- Research centre
- Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Atom Optics and Ultrafast Spectroscopy
- Source
- Annalen der Physik, Vol. 524, no. 11 (Nov 2012), pp. L5-L10
- Publication year
- 2012
- FOR Code(s)
- 01 Mathematical Sciences; 02 Physical Sciences
- Keyword(s)
- Femtosecond laser fabrication; Plasmonics; Ripples; SERS; Surface-enhanced Raman scattering
- Publisher
- Wiley VCH Verlag
- ISSN
- 0003-3804
- Publisher URL
- http://dx.doi.org/10.1002/andp.201200140
- Copyright
- Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Research Projects
-
Ultra-fast alchemy: a new strategy to synthesise super-dense nanomaterials, Australian Research Council grant number DP120102980
- Peer reviewed
