Nanocrosses with Highly Tunable Double Resonances for Near-Infrared Surface-Enhanced Raman Scattering. (25th February 2012)

• Record Type: Journal Article
• Authors: Jian, Ye; Pol, VanDorpe
• Other Names: Koenderink A. Femius Academic Editor.
• Is Part Of: International journal of optics. Volume 2012(2012)
• Publication Date: 2012-02-25
• Subjects: Optics -- Periodicals; Optics; Periodicals; 535
• DOI: 10.1155/2012/745982
• Languages: English
• ISSNs: 1687-9392

Abstract

Abstract : We present asymmetric gold nanocrosses with highly tunable double resonances for the near-infrared (NIR) surface-enhanced Raman scattering (SERS), optimizing electric field enhancement at both the excitation and Stokes Raman wavelengths. The calculated largest SERS enhancement factor can reach a value as large as 1.0 × 10 10 . We have found that the peak separation, the resonance position, and peak intensity ratio of the double-resonance gold nanocrosses can be tuned by changing the structural dimensions or the light polarization.