Abstract:
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.
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Citas:
---------- APA ----------
Quinteiro, G.F. & Tamborenea, P.I.
(2009)
. Theory of the optical absorption of light carrying orbital angular momentum by semiconductors. EPL, 85(4).
http://dx.doi.org/10.1209/0295-5075/85/47001---------- CHICAGO ----------
Quinteiro, G.F., Tamborenea, P.I.
"Theory of the optical absorption of light carrying orbital angular momentum by semiconductors"
. EPL 85, no. 4
(2009).
http://dx.doi.org/10.1209/0295-5075/85/47001---------- MLA ----------
Quinteiro, G.F., Tamborenea, P.I.
"Theory of the optical absorption of light carrying orbital angular momentum by semiconductors"
. EPL, vol. 85, no. 4, 2009.
http://dx.doi.org/10.1209/0295-5075/85/47001---------- VANCOUVER ----------
Quinteiro, G.F., Tamborenea, P.I. Theory of the optical absorption of light carrying orbital angular momentum by semiconductors. EPL. 2009;85(4).
http://dx.doi.org/10.1209/0295-5075/85/47001