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Updated: Jun 3, 2026

Method for Recording Broadband High Resolution Emission Spectra of Laboratory Lightning Arcs
Published on: August 27, 2019
Optical transmission filters for observation of lightning phenomena in the Earth atmosphere
Angela Piegari1, Ilaria Di Sarcina, Maria Luisa Grilli
1Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Rome, Italy. angela.piegari@enea.it
Abstract:
Very narrowband transmission filters, as parts of an instrument for the study of lightning phenomena, are described. Their performance must be maintained at an incidence angle of ±5.5° and this condition poses some limitations on the minimum bandwidth of the order of a few nanometers. The fabrication of such coatings on large area substrates is quite challenging because of the required thickness accuracy. Moreover, their performance should be not influenced by the environmental conditions in space.
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