Why a magnetoactive quantum wire can act as an optical amplifier
POSTER
Abstract
The fundamental issues associated with the magnetoplasmon excitations are investigated in a
quantum wire characterized by a confining harmonic potential and subjected to a perpendicular
magnetic field. Essentially, we embark on the device aspects of the intersubband collective
(magnetoroton) excitation which observes a negative group velocity between the maxon and the
roton. The computation of the gain coefficient suggests an interesting and important application:
the electronic device based on such magnetoroton modes can act as an optical amplifier
quantum wire characterized by a confining harmonic potential and subjected to a perpendicular
magnetic field. Essentially, we embark on the device aspects of the intersubband collective
(magnetoroton) excitation which observes a negative group velocity between the maxon and the
roton. The computation of the gain coefficient suggests an interesting and important application:
the electronic device based on such magnetoroton modes can act as an optical amplifier
Publication: 1. M. S. Kushwaha, Phys. Rev. B 76, 245315 (2007).
2. M. S. Kushwaha, Phys. Rev. B 78, 153306 (2008).
3. M. S. Kushwaha, J. Appl. Phys. 106, 066102 (2009).
4. M. S. Kushwaha, J. Appl. Phys. 109, 106102 (2011) .
5. M.S. Kushwaha, Mod. Phys. Lett. B 28, 1430013 (2014).
Presenters
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Bahram Djafari-Rouhani
University of Science & Technology of Lille
Authors
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Manvir S Kushwaha
Rice University
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Bahram Djafari-Rouhani
University of Science & Technology of Lille