Continuous third harmonic generation in a terahertz driven modulated nanowire

Authors

Kathleen E. Hamilton, University of California - RiversideFollow
Alexey Kovalev, University of Nebraska-LincolnFollow
Amrit De, University of California - RiversideFollow
Leonid P. Pryadko, University of California - RiversideFollow

Date of this Version

2015

Citation

JOURNAL OF APPLIED PHYSICS 117, 213103 (2015)

Comments

Copyright 2015 Used by permission

Abstract

We consider the possibility of observing continuous third-harmonic generation using a strongly driven, single-band one-dimensional metal. In the absence of scattering, the quantum efficiency of frequency tripling for such a system can be as high as 93%. Combining the Floquet quasienergy spectrum with the Keldysh Green’s function technique, we derive a semiclassical master equation for a one-dimensional band of strongly and rapidly driven electrons in the presence of weak scattering by phonons. The power absorbed from the driving field is continuously dissipated by phonon modes, leading to a quasi-equilibrium in the electron distribution. We use the Kronig-Penney model with varying effective mass to establish the growth parameters of an InAs/ InP nanowire near optimal for third harmonic generation at terahertz frequency range.