Solar background rejection by a pressure-broadened atomic resonance filter operating at a Fraunhofer wavelength

We have calculated the solar background rejection of the Mg atomic resonance filter operating at the b(1) Fraunhofer wavelength (518.4 nm) as a function of the pressure-broadened filter linewidth. For pressure broadening induced by the noble gases the solar background rejection decreases from 93% at...

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Bibliographic Details
Published in:Optics letters 1989-02, Vol.14 (4), p.211-213
Main Authors: GELBWACHS, J. A, TABAT, M. D
Format: Article
Language:English
Subjects:
Exact sciences and technology
Filters, zone plates, and polarizers
Fundamental areas of phenomenology (including applications)
Optical elements, devices, and systems
Optics
Physics
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Summary:We have calculated the solar background rejection of the Mg atomic resonance filter operating at the b(1) Fraunhofer wavelength (518.4 nm) as a function of the pressure-broadened filter linewidth. For pressure broadening induced by the noble gases the solar background rejection decreases from 93% at a 0.002-nm bandwidth to 82-84% at a 0.02-nm bandwidth. Solar background rejection was insensitive to buffer gas and was optimum for the noble gas with the smallest shift-to-broadening ratio.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.14.000211