Open AccessEffect of an Inverse Parabolic Confining Electric Potential on Third Harmonic Generation in Cylindrical Quantum Wires
Author(s) -
Moletlanyi Tshipa
Publication year - 2018
Publication title -
characterization and application of nanomaterials
Language(s) - English
Resource type - Journals
ISSN - 2578-1995
DOI - 10.24294/can.v1i3.659
Subject(s) - inverse , physics , quantum , photon , schrödinger equation , quantum wire , wave function , photon energy , harmonic , quantum mechanics , function (biology) , amplitude , quantum electrodynamics , condensed matter physics , atomic physics , mathematics , geometry , evolutionary biology , biology
A theoretical investigation of the effect of an inverse parabolic potential on third harmonic generation in cylindrical quantum wires is presented. The wave functions are obtained as solutions to Schrödinger equation solved within the effective mass approximation. It turns out that peaks of the third harmonic generation susceptibility (THGS) associated with nanowires of small radii occur at larger photon energies as compared to those associated with quantum wires of larger radii. The inverse parabolic potential red-shifts peaks of the THGS, and suppresses the amplitude of the THGS. THGS associated with higher radial quantum numbers is diminished in magnitude and blue-shifted, as a function of the photon energy. As a function of the inverse parabolic potential, the THGS still characterized by peaks, and the peaks shift to lower values of the potential as the photon energy increases.