On a plasmon resonance in ellipsoidal nanoparticles
| Autor: | Anatolii N Oraevsky, Alexander A. Oraevsky |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Materials science
business.industry media_common.quotation_subject Surface plasmon Physics::Optics Nanoparticle Resonance Statistical and Nonlinear Physics Molecular physics Surface plasmon polariton Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Optics Physics::Atomic and Molecular Clusters Electrical and Electronic Engineering Surface plasmon resonance Eccentricity (behavior) business Plasmon media_common Localized surface plasmon |
| Zdroj: | Quantum Electronics. 32:79-82 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe2002v032n01abeh002131 |
| Popis: | The dependence of the plasmon resonance frequency of metal ellipsoids of revolution on their eccentricity is calculated. The plasmon resonance shifts to the red with increasing eccentricity and its intensity increases. The resonance intensity increases with decreasing the imaginary part of the dielectric constant of a metal. The plasmon resonance frequency in a suspension of randomly oriented prolate nanoparticles (with a large eccentricity) almost exactly coincides with that in a suspension of oriented particles. These features permit the efficient improvement of the sensitivity and resolving power of optoacoustic tomography by introducing prolate metal nanoparticles into the region of an object under study. The possibility of plasmon resonance narrowing by introducing metal nanoparticles into an amplifying medium is pointed out. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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