Artículo
Theory of the optical absorption of light carrying orbital angular momentum by semiconductors
Fecha de publicación:
02/2009
Editorial:
Europhysics Letters
Revista:
Europhysics Letters
ISSN:
0295-5075
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We develop a free-carrier theory of the optical absorption of light carrying orbital angular momentum (twisted light) by bulk semiconductors. We obtain the optical transition matrix elements for Bessel-mode twisted light and use them to calculate the wave function of photo-excited electrons to first-order in the vector potential of the laser. The associated net electric currents of first and second-order on the field are obtained. It is shown that the magnetic field produced at the center of the beam for the ℓ=1 mode is of the order of a millitesla, and could therefore be detected experimentally using, for example, the technique of time-resolved Faraday rotation. Copyright © 2009 EPLA.
Palabras clave:
Twisted Light
,
Semiconductors
,
Orbital Angular Momentum
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Identificadores
Colecciones
Articulos(IFIBA)
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos de INST.DE FISICA DE BUENOS AIRES
Articulos(OCA CIUDAD UNIVERSITARIA)
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Articulos de OFICINA DE COORDINACION ADMINISTRATIVA CIUDAD UNIVERSITARIA
Citación
Quinteiro, Guillermo Federico; Tamborenea, Pablo Ignacio; Theory of the optical absorption of light carrying orbital angular momentum by semiconductors; Europhysics Letters; Europhysics Letters; 85; 4; 2-2009; 47001-47005
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