Memorias de investigación
Artículos en revistas:
Light concentration in the near-field of dielectric spheroidal particles with mesoscopic sizes
Año:2011
Áreas de investigación
  • Física op -- optica física:,
  • Difracción,,
  • Células solares
Datos
Descripción
This paper presents a numerical study of the light focusing properties of dielectric spheroids with sizes comparable to the illuminating wavelength. An analytical separation-of-variables method is used to determine the electric field distribution inside and in the near-field outside the particles. An optimization algorithm was implemented in the method to determine the particles¿ physical parameters that maximize the forward scattered light in the near-field region. It is found that such scatterers can exhibit pronounced electric intensity enhancement (above 100 times the incident intensity) in their close vicinity, or along wide focal regions extending to 10 times the wavelength. The results reveal the potential of wavelength-sized spheroids to manipulate light beyond the limitations of macroscopic geometrical optics. This can be of interest for several applications, such as light management in photovoltaics.
Internacional
Si
JCR del ISI
Si
Título de la revista
Optics express
ISSN
1094-4087
Factor de impacto JCR
0
Información de impacto
Volumen
19
DOI
Número de revista
Desde la página
16207
Hasta la página
1622
Mes
AGOSTO
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Silicio y Nuevos Conceptos para Células Solares
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física