Why a magnetized semiconducting quantum wirecan act as an optical amplifier
ORAL
Abstract
The fundamental issues associated with the magneto-roton 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 amplifier1. 1. M.S. Kushwaha, Phys. Rev. B 78, 153306 (2008); J. Appl. Phys. 109, 106102 (2011); Europhys. Lett. 123, 34001 (2018);
Mod. Phys. Lett. B 33, 1950062 (2019).
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 amplifier1. 1. M.S. Kushwaha, Phys. Rev. B 78, 153306 (2008); J. Appl. Phys. 109, 106102 (2011); Europhys. Lett. 123, 34001 (2018);
Mod. Phys. Lett. B 33, 1950062 (2019).
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Publication: 1. M.S. Kushwaha, Phys. Rev. B 78, 153306 (2008); <br>2. M.S. Kushwaha, J. Appl. Phys. 109, 106102 (2011); <br>3. M.S. Kushwaha, Europhys. Lett. 123, 34001 (2018);<br>4. M.S. Kushwaha, Mod. Phys. Lett. B 33, 1950062 (2019).
Presenters
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Manvir S Kushwaha
Rice University
Authors
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Manvir S Kushwaha
Rice University