Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits

Details Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits

2008-06-16

arxiv.org/abs/0806.2534v1

J. Eur. Opt. Soc., Rapid Publ. 3, 08022 (2008)

Physics

Optics

12 pages including 5 figures

Scientific paper

10.2971/jeos.2008.08022

Surface-enhanced Raman spectroscopy (SERS) allows single-molecule detection due to the strong field localization occurring at sharp bends or kinks of the metal-vacuum interface. An important question concerns the limits of the signal enhancement that can be achieved via a judicious design of the surface. By using a specific example of a technologically realizable nanopatterned surface, we demonstrate that while very high enhancement factors (~10^12) can be found for an ideal surface, these are unlikely to be achieved in laboratory samples, because even a minute, inevitable rounding-off strongly suppresses the enhancement, as well as shifts the optimal frequency. Our simulations indicate that the geometric enhancement factors are unlikely to exceed ~10^8 for real samples, and that it is necessary to consider the geometric uncertainty to reliably predict the frequency for maximum enhancement.

Affiliated with

Also associated with

No associations

Rating

Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nanostructure design for surface-enhanced Raman spectroscopy - prospects and limits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-91732