Manuel J. Mendes Website
Professor of Photonics, Photovoltaics and Optoelectronics subjects
CENIMAT-i3N and CEMOP-UNINOVA, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa. Campus de Caparica. 2829-516 Caparica. Portugal (email)
CENIMAT-i3N and CEMOP-UNINOVA, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa. Campus de Caparica. 2829-516 Caparica. Portugal (email)
A semiclassical method is developed to calculate the energy absorption of an electronic system located in the near field of a metal nanoparticle sustaining surface plasmons. The results are found to be similar to those of photon absorption from ordinary transversal radiation. However, they are affected by a geometrical factor that can increase the absorption by several orders of magnitude. As example, we investigate ellipsoidal-shaped metal nanoparticles which, under favorable conditions, may provide near field aborption enhancements almost as large as 10(4), and in many cases above 10. (C) 2008 American Institute of Physics. [DOI: 10.1063/1.3014035]
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