A thermal spectral-spatial interferometric testbed

G. Savini; R. Juanola-Parramon; R. Stabbins; N. Baccichet; A. Donohoe; A. Murphy; C. O'Sullivan

doi:10.1117/12.2056612

24 July 2014 A thermal spectral-spatial interferometric testbed

G. Savini, R. Juanola-Parramon, R. Stabbins, N. Baccichet, A. Donohoe, A. Murphy, C. O'Sullivan

Proceedings Volume 9146, Optical and Infrared Interferometry IV; 91462N (2014) https://doi.org/10.1117/12.2056612
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

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.

Citation Download Citation

G. Savini, R. Juanola-Parramon, R. Stabbins, N. Baccichet, A. Donohoe, A. Murphy, and C. O'Sullivan "A thermal spectral-spatial interferometric testbed", Proc. SPIE 9146, Optical and Infrared Interferometry IV, 91462N (24 July 2014); https://doi.org/10.1117/12.2056612

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