English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/224560
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Electromagnetic field enhancement in TERS configurations

AuthorsYang, Zhilin; Aizpurua, Javier CSIC ORCID ; Xu, Hongxing
Issue Date2009
CitationJournal of Raman Spectroscopy 40(10): 1343-1348 (2009)
AbstractWe use three‐dimensional finite‐difference time domain (3D‐FDTD) simulations to investigate the field enhancement properties of tip‐enhanced Raman scattering (TERS) in order to find optimal geometric parameters of the metal tip and the metal substrate under certain excitation wavelengths with side illumination. The simulation results show that plasmon coupling effects between the metal tip and the metal substrate play the key role in TERS enhancement, and the enhancement drops dramatically as the distance between the tip and the substrate increases. The spatial resolution of TERS is mainly dependent on the radius of curvature of the tip end. A sharp tip with a small radius can dramatically increase the spatial resolution of TERS. Increasing the tip–substrate distance or changing the metallic substrate into a dielectric substrate lowers the spatial resolution. The TERS enhancement dependence on the incident angle and polarization, the size of tip, as well as the composition of the substrate is also discussed in detail.
Publisher version (URL)https://doi.org/10.1002/jrs.2429
Appears in Collections:(CFM) Artículos
Files in This Item:
File Description SizeFormat 
accesoRestringido.pdf59,24 kBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.