10 October 2011 Investigations of SNR for a short-wave infrared intensity interferometer
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Abstract
Intensity interferometery holds tremendous potential for remote sensing of space objects. Whereas spatial resolution of imagery obtained from earth-based observatories is typically limited by both the size of the primary mirror and atmospheric effects, intensity interferometers (IIs) are relatively unaffected by atmospheric distortions and their effective apertures can be substantially larger than is practical for traditional observatories. Most intensity interferometer measurements have been performed in the visible region due to well-known issues of poor signal to noise ratios and the performance of detectors in the visible spectral bands. In fact the short-wave infrared (SWIR) spectral band is relatively unexplored for II applications. In this paper we investigate the measurement signal to noise terms for a notional SWIR intensity interferometer. Our study goes beyond the most basic SNR equations of II, and analyzes atmospheric effects, sky backgrounds, and detector characteristics, considering the current state-of-the-art for experiments in the short-wave infrared spectral region.
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Jeremy Murray-Krezan, Jeremy Murray-Krezan, David Dayton, David Dayton, Jeffrey Allen, Jeffrey Allen, John Gonglewski, John Gonglewski, Michael Myers, Michael Myers, Rudolph Nolasco, Rudolph Nolasco, Gregory Fertig, Gregory Fertig, } "Investigations of SNR for a short-wave infrared intensity interferometer", Proc. SPIE 8178, Optics in Atmospheric Propagation and Adaptive Systems XIV, 817804 (10 October 2011); doi: 10.1117/12.899887; https://doi.org/10.1117/12.899887
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