skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nanowire terahertz quantum cascade lasers

Abstract

Quantum cascade lasers made of nanowire axial heterostructures are proposed. The dissipative quantum dynamics of their carriers is theoretically investigated using non-equilibrium Green functions. Their transport and gain properties are calculated for varying nanowire thickness, from the classical-wire regime to the quantum-wire regime. Our calculation shows that the lateral quantum confinement provided by the nanowires allows an increase of the maximum operation temperature and a strong reduction of the current density threshold compared to conventional terahertz quantum cascade lasers.

Authors:
 [1]
  1. Walter Schottky Institut, Technische Universität München, Am Coulombwall 4, D-85748, Garching (Germany)
Publication Date:
OSTI Identifier:
22350841
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 14; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CARRIERS; CONFINEMENT; CURRENT DENSITY; EQUILIBRIUM; GAIN; GREEN FUNCTION; LASER MATERIALS; LASERS; NANOWIRES; OPERATION; QUANTUM WIRES; SIMULATION; THICKNESS

Citation Formats

Grange, Thomas. Nanowire terahertz quantum cascade lasers. United States: N. p., 2014. Web. doi:10.1063/1.4897543.
Grange, Thomas. Nanowire terahertz quantum cascade lasers. United States. https://doi.org/10.1063/1.4897543
Grange, Thomas. 2014. "Nanowire terahertz quantum cascade lasers". United States. https://doi.org/10.1063/1.4897543.
@article{osti_22350841,
title = {Nanowire terahertz quantum cascade lasers},
author = {Grange, Thomas},
abstractNote = {Quantum cascade lasers made of nanowire axial heterostructures are proposed. The dissipative quantum dynamics of their carriers is theoretically investigated using non-equilibrium Green functions. Their transport and gain properties are calculated for varying nanowire thickness, from the classical-wire regime to the quantum-wire regime. Our calculation shows that the lateral quantum confinement provided by the nanowires allows an increase of the maximum operation temperature and a strong reduction of the current density threshold compared to conventional terahertz quantum cascade lasers.},
doi = {10.1063/1.4897543},
url = {https://www.osti.gov/biblio/22350841}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 14,
volume = 105,
place = {United States},
year = {Mon Oct 06 00:00:00 EDT 2014},
month = {Mon Oct 06 00:00:00 EDT 2014}
}