Journal
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
Volume 12, Issue 2, Pages 144-150Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TTHZ.2021.3124310
Keywords
Quantum cascade lasers; Optical waveguides; Laser beams; Laser tuning; Surface emitting lasers; Heating systems; Waveguide lasers; THz QCL; GUSTO; Unidirectional DFB; Oxygen line
Funding
- National Aeronautics and Space Administration
- U.S. Department of Energy's National Nuclear Security Administration [DE-NA0003525]
- Canada First Research Excellence Fund
- Natural Sciences and Engineering Research Council of Canada
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The Galactic/Extra Ultra-Long-Duration Balloon Spectroscopic-Stratospheric Terahertz Observatory (GUSTO) is a NASA balloon-borne project that aims to detect emission lines from the interstellar medium to understand the life cycle of gases. This article discusses the details of a quantum cascade laser used in the local oscillator for detecting the oxygen line at 4.74 THz.
The Galactic/Extra Ultra-Long-Duration Balloon Spectroscopic-Stratospheric Terahertz Observatory (GUSTO) is a NASA balloon-borne project and is scheduled for launch in late 2022. The balloon will carry a spectroscopic telescope that will detect three brightest emission lines from the interstellar medium. GUSTO measurements will shed light on the life cycle of the gases in the Milky Way and Large Magellanic Cloud. In this article, we will discuss the details of a quantum cascade laser used in the local oscillator for detecting the oxygen line at 4.74 THz.
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