Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.11765/15046
Design and evaluation of a portable frequency comb-referenced laser heterodyne radiometer
Title: Design and evaluation of a portable frequency comb-referenced laser heterodyne radiometer
Authors: Moreno-Oyervides, AldoBonilla Manrique, Óscar ElíasGarcía Rodríguez, Omaira Elena ORCID RESEARCHERID Autor AEMETMartín Mateos, Pedro
Keywords: Laser heterodyne radiometry; Optical frequency comb; Greenhouse gases; Optical atmospheric sounding; Wavelength-modulation laser heterodyne radiometry; Optical spectroscopy
Issue Date: 2023
Publisher: Elsevier
Citation: Optics and Lasers in Engineering. 2023, 171, 107801
Publisher version: https://doi.org/10.1016/j.optlaseng.2023.107801
Abstract: In this paper, we present the design of a laser heterodyne radiometry instrument that combines, for the first time, frequency comb calibration and a remarkably high level of portability. A design that can, therefore, be more than capable of addressing the current need for accurate ground-based greenhouse gases monitoring in urban areas and other emission hot spots. Indeed, the compact, battery-powered system allows the acquisition of atmospheric spectral characterizations, at any location, without restrictions. As its most prominent feature, the system is equipped with an electro-optic frequency comb reference that provides a set of calibration ticks from which an accurate characterization of the absorption line shape can be obtained. Besides this, the spectrometer has been designed to promptly switch between traditional operation and wavelength modulation, so the performance of future inversion models may benefit greatly by this complementary data. The system has been tested in different locations in the Madrid region (Spain), where measurements have been carried out under a wide variety of conditions. Here, a set of highly representative results is presented clearly illustrating the capabilities of the developed system.
Sponsorship : This project has received funding from the EU H2020 Consumerdriven demands to reframe farming systems project under Grant Agreement 101000216, and from the Agencia Estatal de InvestigaciÓn under Grant Project TED2021-131695B-100.
URI: http://hdl.handle.net/20.500.11765/15046
ISSN: 0143-8166
1873-0302
Appears in Collections:Artículos científicos 2023-2026


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