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28 August 2008 Surface plasmon resonance linear and nonlinear response in a single nanorod
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Abstract
The optical extinction spectra of single gold nanorods are investigated using a spatial modulation spectroscopy technique. The experimental results are compared to the computed spectra of nanoellipsoids using the dipolar approximation or a generalization of the Mie theory, focussing on the width of the longitudinal surface plasmon resonance. This is shown to be consistent with that deduced from the theoretical models using different available sets of dielectric constant for bulk gold, without introducing surface broadening effect. Extension of this approach to investigation of the ultrafast nonlinear optical response of a single gold nanorod is also discussed.
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H. Baida, D. Christofilos, P. Maioli, A. Crut, N. Del Fatti, and F. Vallée "Surface plasmon resonance linear and nonlinear response in a single nanorod", Proc. SPIE 7033, Plasmonics: Nanoimaging, Nanofabrication, and Their Applications IV, 703319 (28 August 2008); https://doi.org/10.1117/12.795124
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