skip to main content

Title: Continuous third harmonic generation in a terahertz driven modulated nanowire

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 quasi-energy 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.
Authors:
; ;  [1] ;  [2]
  1. Department of Physics and Astronomy, University of California, Riverside, California 92521 (United States)
  2. Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, Nebraska 68588 (United States)
Publication Date:
OSTI Identifier:
22412858
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 21; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EFFECTIVE MASS; ELECTRONS; ENERGY SPECTRA; FLOQUET FUNCTION; GREEN FUNCTION; HARMONIC GENERATION; INDIUM ARSENIDES; INDIUM PHOSPHIDES; ONE-DIMENSIONAL CALCULATIONS; PHONONS; QUANTUM EFFICIENCY; SCATTERING; SEMICLASSICAL APPROXIMATION; THZ RANGE