Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance

A theoretical investigation of optical properties of a cylindrical quantum wire (CQW) is presented. The properties studied were optical absorption coefficient (AC) and change in refractive index (CRI) of the quantum wire. In particular, effect of an inverse parabolic potential on the optical propert...

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Published in:Advances in condensed matter physics 2019, Vol.2019 (2019), p.1-8
Main Author: Tshipa, Moletlanyi
Format: Article
Language:English
Subjects:
Absorptivity
Dependence
Electric fields
Electric potential
Electric wire
Energy
Gallium arsenide
Magnetic fields
Nanotechnology devices
Nanowires
Noise
Optical properties
Optics
Physics
Quantum dots
Quantum wires
Refractivity
Schrodinger equation
Wave functions
Wire
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description A theoretical investigation of optical properties of a cylindrical quantum wire (CQW) is presented. The properties studied were optical absorption coefficient (AC) and change in refractive index (CRI) of the quantum wire. In particular, effect of an inverse parabolic potential on the optical properties of CQWs was investigated. This was done by solving the Schrödinger equation within the effective mass approximation to obtain the wave functions. The inverse parabolic potential reduces transition energies and therefore redshifts peaks of the AC, as well as the anomalous dispersion region of the dependence of change in refractive index on the photon energy. The inverse parabolic potential also has effect on the magnitudes of these optical quantities, reducing the AC and enhancing the CRI. These properties of the inverse parabolic confining electric potential can have a wide range of applications in nanodevice technology, some details of which are discussed.
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subjects Absorptivity
Dependence
Electric fields
Electric potential
Electric wire
Energy
Gallium arsenide
Magnetic fields
Nanotechnology devices
Nanowires
Noise
Optical properties
Optics
Physics
Quantum dots
Quantum wires
Refractivity
Schrodinger equation
Wave functions
Wire
title Optical Properties of GaAs Nanowires with an Electric Potential That Varies Inversely with the Square of the Radial Distance
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