Spectral response of plasmon resonant nanoparticles with a non-regular shape
TLDR
At resonance frequencies, extremely large enhancements of the electromagnetic fields occur near the surface of the particle, with amplitudes several hundred-fold that of the incident field.Abstract:
We study the plasmon resonances of 10–100(nm) two-dimensional metal particles with a non-regular shape. Movies illustrate the spectral response of such particles in the optical range. Contrary to particles with a simple shape (cylinder, ellipse) non-regular particles exhibit many distinct resonances over a large spectral range. At resonance frequencies, extremely large enhancements of the electromagnetic fields occur near the surface of the particle, with amplitudes several hundred-fold that of the incident field. Implications of these strong and localized fields for nano-optics and surface enhanced Raman scattering (SERS) are also discussed.read more
Citations
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Principles of nano-optics
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TL;DR: In this paper, the authors proposed a method for propagating and focusing of optical fields in a nano-optics environment using near-field optical probes and probe-sample distance control.
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Exploitation of Localized Surface Plasmon Resonance
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TL;DR: A survey of the most common methods of preparation and arraying of materials with localized surface plasmon resonance (LSPR), and of the optical manifestations of LSPR can be found in this article.
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Nanostructured plasmonic sensors.
Matthew E. Stewart,Christopher R. Anderton,Lucas B. Thompson,Joana Maria,Stephen K. Gray,John A. Rogers,Ralph G. Nuzzo +6 more
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Surface-Enhanced Raman Scattering: From Noble to Transition Metals and from Rough Surfaces to Ordered Nanostructures
TL;DR: In this paper, a surface-enhanced Raman scattering (SERS) was discovered which impacted on surface science and spectroscopy because of its extremely high surface sensitivity, but SERS had not developed as many people had hoped to be a powerful surface diagnostic technique that can be widely used because of some obstacles.
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Properties and Applications of Colloidal Nonspherical Noble Metal Nanoparticles
Tapan K. Sau,Andrey L. Rogach,Andrey L. Rogach,Frank Jäckel,Thomas A. Klar,Thomas A. Klar,Jochen Feldmann +6 more
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References
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P. B. Johnson,R. W. Christy +1 more
TL;DR: In this paper, the optical constants for the noble metals (copper, silver, and gold) from reflection and transmission measurements on vacuum-evaporated thin films at room temperature, in the spectral range 0.5-6.5 eV.
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Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering
Shuming Nie,Steven R. Emory +1 more
TL;DR: In this article, surface-enhanced Raman scattering was used to detect single molecules and single nanoparticles at room temperature with the use of surface enhanced Raman, and the intrinsic Raman enhancement factors were on the order of 10 14 to 10 15, much larger than the ensemble-averaged values derived from conventional measurements.
Journal ArticleDOI
Single Molecule Detection Using Surface-Enhanced Raman Scattering (SERS)
Katrin Kneipp,Katrin Kneipp,Yang Wang,Yang Wang,Harald Kneipp,Harald Kneipp,Lev T. Perelman,Lev T. Perelman,Irving Itzkan,Irving Itzkan,Ramachandra R. Dasari,Ramachandra R. Dasari,Michael S. Feld,Michael S. Feld +13 more
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Surface-enhanced spectroscopy
TL;DR: The surface-enhanced Raman scattering (SERS) effect was first discovered by Fleischmann, Van Duyne, Creighton, and Creighton as discussed by the authors, who showed that molecules adsorbed on specially prepared silver surfaces produce a Raman spectrum that is at times a millionfold more intense than expected.
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