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:
-
- 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}
}
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