Correction of instrument line-shape distortions in Fourier transform spectroscopy

Raspollini, Piera, Ade, Peter A. R. ORCID: https://orcid.org/0000-0002-5127-0401, Carli, Bruno and Ridolfi, Marco 1998. Correction of instrument line-shape distortions in Fourier transform spectroscopy. Applied Optics 37 (17) , pp. 3697-3704. 10.1364/AO.37.003697

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Abstract

A recovery procedure has been developed to correct instrument line-shape distortions observed in Fourier transform spectroscopy. The procedure can be described as a phase-error correction performed in the spectral domain to correct for path-difference-dependent phase errors observed in sharp spectral features. The technique has been applied successfully to high-resolution atmospheric emission spectra. The inherent broadening of the real features has been separated accurately from instrumental distortions. Using models for the path-difference-dependent error sources and data from two narrow window regions at 50 and 118 cm-1, we show that the distortion has a simple dependence on the spectral frequency.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Publisher:	The Optical Society
ISSN:	0003-6935
Last Modified:	27 Oct 2022 08:22
URI:	https://orca.cardiff.ac.uk/id/eprint/62097

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