Thin perfect absorbers based on metamaterials for optical frequencies
In this work a bidimensional array of particles is approached like a system of dipoles characterized by their electric and magnetic polarizabilities. The interaction between particles has been taken into account by adding contribution of every dipole at the position of the central dipole. This array...
- Autores:
-
Del Risco, Juan P.
Baena, Juan D.
Ortiz, Julian D.
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2013
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/49304
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/49304
http://bdigital.unal.edu.co/42761/
- Palabra clave:
- Polarizabilidad eléctrica
polarizabilidad magnética
corriente eléctrica efectiva
corriente magnética efectiva
condición de absorción
teoría de Mie.
Electric polarizability
magnetic polarizability
effective electric current
effective magnetic current
absorption condition
Mie theory
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | In this work a bidimensional array of particles is approached like a system of dipoles characterized by their electric and magnetic polarizabilities. The interaction between particles has been taken into account by adding contribution of every dipole at the position of the central dipole. This array was modeled later as a surface which supports effective electric and magnetic surface currents. From these currents, the boundary conditions for perfect absorption were established. This model was applied onto an array of coated nanospheres, whose scattering is described by the Mie theory, obtaining values of absorption up to 99%. |
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