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Optical Characterization of a One-Dimensional Array of Narrow Antiwires
Published online by Cambridge University Press: 21 February 2011
Abstract
We present a self-consistent field theory for the infrared absorption coefficient of a simple model of an array of narrow antiwires in an external magnetic field. A detailed study is made of the way in which the collective modes change from a cyclotron mode when the confining potential is weak, to tunneling coupled modes for intermediate antiwire potential strength, and then to edge and ID lattice magnetoplasmon modes for strong potentials. By using incident light with tunable frequencies in the interband excitation regime, contactless photoreflectance measurements may be carried out and the data compared with our calculations. By fitting the numerical results to the peak positions of the photoreflectance spectrum, the number of electrons in each wire may be extracted.
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- Copyright © Materials Research Society 1994