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Proceedings Paper

A thermal spectral-spatial interferometric testbed
Author(s): G. Savini; R. Juanola-Parramon; R. Stabbins; N. Baccichet; A. Donohoe; A. Murphy; C. O'Sullivan
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Paper Abstract

We present an ongoing effort to achieve a Double Fourier Modulating (DFM) interferometer in the thermal infrared wavelength range. We describe a testbed designed to combine a sky simulator in the form of a miniaturized complex calibration source at the focus of a parabolic collimator with an interferometer baseline consisting of two parallel telescopes each mounted on a motorized linear stage. The two input arms are combined after one of them is modulated via a fast-scanning piezoelectric roof-top mirror. The optical design and layout of the testbed, the choice of interferometer parameters as well as the calibration scene adopted as source are described.

Paper Details

Date Published: 24 July 2014
PDF: 6 pages
Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462N (24 July 2014); doi: 10.1117/12.2056612
Show Author Affiliations
G. Savini, Univ. College London (United Kingdom)
R. Juanola-Parramon, Univ. College London (United Kingdom)
R. Stabbins, Univ. College London (United Kingdom)
N. Baccichet, Univ. College London (United Kingdom)
A. Donohoe, National Univ. of Ireland, Maynooth (Ireland)
A. Murphy, National Univ. of Ireland, Maynooth (Ireland)
C. O'Sullivan, National Univ. of Ireland, Maynooth (Ireland)

Published in SPIE Proceedings Vol. 9146:
Optical and Infrared Interferometry IV
Jayadev K. Rajagopal; Michelle J. Creech-Eakman; Fabien Malbet, Editor(s)

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