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Title: Double metal waveguide InGaAs/AlInAs quantum cascade lasers emitting at 24 μm

Abstract

A study on far-infrared In{sub 0.53}Ga{sub 0.47}As/Al{sub 0.48}In{sub 0.52}As quantum cascade lasers operating with a double metal waveguide is presented. To increase the laser upper state lifetime, a diagonal bound-to-continuum transition scheme is used in the active region. The observed threshold current density at 50 K is 5.7 kA/cm{sup 2}, and the maximum operation temperature is 240 K. The laser emission wavelength is 24.4 μm, which is the longest wavelength in the mid-infrared quantum cascade lasers so far reported.

Authors:
; ;  [1]
  1. Institute for Quantum Electronics, ETH Zurich, Auguste-Piccard-Hof 1, 8093 Zurich (Switzerland)
Publication Date:
OSTI Identifier:
22350744
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 12; 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; ALUMINIUM COMPOUNDS; ARSENIC COMPOUNDS; CURRENT DENSITY; DENSITY; EMISSION; FAR INFRARED RADIATION; GALLIUM ARSENIDES; GALLIUM COMPOUNDS; INDIUM ARSENIDES; INDIUM COMPOUNDS; LASERS; LIFETIME; METALS; THRESHOLD CURRENT; WAVEGUIDES; WAVELENGTHS

Citation Formats

Ohtani, K., E-mail: otanik@phys.ethz.ch, Beck, M., and Faist, J., E-mail: jfaist@phys.ethz.ch. Double metal waveguide InGaAs/AlInAs quantum cascade lasers emitting at 24 μm. United States: N. p., 2014. Web. doi:10.1063/1.4896542.
Ohtani, K., E-mail: otanik@phys.ethz.ch, Beck, M., & Faist, J., E-mail: jfaist@phys.ethz.ch. Double metal waveguide InGaAs/AlInAs quantum cascade lasers emitting at 24 μm. United States. doi:10.1063/1.4896542.
Ohtani, K., E-mail: otanik@phys.ethz.ch, Beck, M., and Faist, J., E-mail: jfaist@phys.ethz.ch. Mon . "Double metal waveguide InGaAs/AlInAs quantum cascade lasers emitting at 24 μm". United States. doi:10.1063/1.4896542.
@article{osti_22350744,
title = {Double metal waveguide InGaAs/AlInAs quantum cascade lasers emitting at 24 μm},
author = {Ohtani, K., E-mail: otanik@phys.ethz.ch and Beck, M. and Faist, J., E-mail: jfaist@phys.ethz.ch},
abstractNote = {A study on far-infrared In{sub 0.53}Ga{sub 0.47}As/Al{sub 0.48}In{sub 0.52}As quantum cascade lasers operating with a double metal waveguide is presented. To increase the laser upper state lifetime, a diagonal bound-to-continuum transition scheme is used in the active region. The observed threshold current density at 50 K is 5.7 kA/cm{sup 2}, and the maximum operation temperature is 240 K. The laser emission wavelength is 24.4 μm, which is the longest wavelength in the mid-infrared quantum cascade lasers so far reported.},
doi = {10.1063/1.4896542},
journal = {Applied Physics Letters},
issn = {0003-6951},
number = 12,
volume = 105,
place = {United States},
year = {2014},
month = {9}
}