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Proceedings Paper

LOCUS: Low cost upper atmosphere sounder
Author(s): Daniel Gerber; Bruce M. Swinyard; Brian N. Ellison; John M. C. Plane; Wuhu Feng; Nimal Navarathinam; Stuart J. Eves; Rachel Bird; Edmund H. Linfield; A. Giles Davies; Steve Parkes
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Paper Abstract

We present the results of an instrument concept study for a low cost terahertz sounder of the mesosphere and lower thermosphere (MLT). Recent advances in the development of Quantum Cascade Laser (QCL) technology to be used for Local Oscillators (LOs) mean that it has now become viable for the first time to build compact, low weight heterodyne receivers in the terahertz (THz) frequency range [28]. Some of the most important atmospheric constituents of the MLT region, e.g. atomic oxygen (O) and the hydroxyl radical (OH), can only realistically be measured at THz frequencies. The technical challenges of THz remote sensing result in a large uncertainly of the global distribution of these species. Recent research indicates that the MLT region exhibits links to processes associated with climate change. From this follows a strong need to measure the composition and dynamic of the MLT region more accurately and more comprehensively.

Paper Details

Date Published: 24 October 2013
PDF: 18 pages
Proc. SPIE 8889, Sensors, Systems, and Next-Generation Satellites XVII, 88891I (24 October 2013); doi: 10.1117/12.2028675
Show Author Affiliations
Daniel Gerber, Rutherford Appleton Lab. (United Kingdom)
Bruce M. Swinyard, Rutherford Appleton Lab. (United Kingdom)
Univ. College London (United Kingdom)
Brian N. Ellison, Rutherford Appleton Lab. (United Kingdom)
John M. C. Plane, Univ. of Leeds (United Kingdom)
Wuhu Feng, Univ. of Leeds (United Kingdom)
Nimal Navarathinam, Surrey Satellite Technology Ltd. (United Kingdom)
Stuart J. Eves, Surrey Satellite Technology Ltd. (United Kingdom)
Rachel Bird, Surrey Satellite Technology Ltd. (United Kingdom)
Edmund H. Linfield, Univ. of Leeds (United Kingdom)
A. Giles Davies, Univ. of Leeds (United Kingdom)
Steve Parkes, STAR-Dundee Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 8889:
Sensors, Systems, and Next-Generation Satellites XVII
Roland Meynart; Steven P. Neeck; Haruhisa Shimoda, Editor(s)

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