Nanocrosses with Highly Tunable Double Resonances for Near-Infrared Surface-Enhanced Raman Scattering | Zendy

Jian Ye | Zendy; VanDorpe Pol | Zendy

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Nanocrosses with Highly Tunable Double Resonances for Near-Infrared Surface-Enhanced Raman Scattering

Author(s) -

Jian Ye,

VanDorpe Pol

Publication year - 2012

Publication title -

international journal of optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.263

H-Index - 17

eISSN - 1687-9392

pISSN - 1687-9384

DOI - 10.1155/2012/745982

Subject(s) - raman scattering , excitation , raman spectroscopy , resonance (particle physics) , materials science , polarization (electrochemistry) , wavelength , infrared , scattering , analytical chemistry (journal) , nuclear magnetic resonance , optics , physics , atomic physics , optoelectronics , chemistry , chromatography , quantum mechanics

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 1.0×1010. 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

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