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Proceedings Paper

Fabry-Perot tunable filter for the visible and near IR using nematic liquid crystals
Author(s): Domenico Bonaccini; Luca Casini; Paolo Stefanini
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Paper Abstract

A nematic liquid crystal Fabry-Perot interferometer (NLC-FPI) based on nematic material in a parallel configuration is described, for applications in astronomy. This device allows spectral chopping for an efficient removal of background radiation, when the source is embedded in a strong background such as the solar corona or IR sources. The primary design is intended for two-dimensional spectroscopic imaging. This method is also very useful for precision spectropolarimetry. The NLC-FPI is a tunable, double-channel filtec we present some theoretical and experimental results obtained on a first generation pmtotype.

Paper Details

Date Published: 1 November 1990
PDF: 10 pages
Proc. SPIE 1334, Current Developments in Optical Engineering IV, (1 November 1990); doi: 10.1117/12.22851
Show Author Affiliations
Domenico Bonaccini, Osservatorio Astrofisico di Ar (Germany)
Luca Casini, Osservatorio Astrofisico di Arcetri (Italy)
Paolo Stefanini, Osservatorio Astrofisico di Ar (Italy)

Published in SPIE Proceedings Vol. 1334:
Current Developments in Optical Engineering IV
Robert E. Fischer; Warren J. Smith, Editor(s)

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