Premium
Nonlinear terahertz response associated to electronic intersubband transitions in a V‐groove quantum wire
Author(s) -
MirandaPedraza Guillermo L.,
Ospina Walter,
GiraldoTobón Eugenio
Publication year - 2017
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201600463
Subject(s) - terahertz radiation , optical rectification , rectification , groove (engineering) , nonlinear system , physics , density matrix , quantum wire , condensed matter physics , quantum dot , quantum , nonlinear optics , optoelectronics , optics , quantum mechanics , materials science , power (physics) , metallurgy
The electron states as well as the nonlinear optical rectification and second and third harmonic generations are investigated in a GaAs‐based V‐groove quantum wire. The single band effective mass Schrödinger equation is solved using the finite element method. The nonlinear optical coefficients were calculated from expressions derived within the compact density matrix method. It is found that this kind of nanostructures can exhibit noticeable nonlinear responses in the domain of the terahertz when the V‐groove is in the open‐wide geometrical configuration.