Stationary Fourier transform spectrometry

Erez N. Ribak; Eyal Schwartz

doi:10.1117/12.2559469

13 December 2020 Stationary Fourier transform spectrometry

Erez N. Ribak, Eyal Schwartz

Proceedings Volume 11447, Ground-based and Airborne Instrumentation for Astronomy VIII; 1144744 (2020) https://doi.org/10.1117/12.2559469
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We develop an interferometer for measurement of narrow atmospheric spectral lines, mainly in the infra-red. The bias and background are dominant, but irrelevant for the measurement. Hence we employ an optical band-pass filter tuned to the expected width of the spectral lines: Instead of scanning the full path delay with a single detector, we image the fringes on a two-dimensional camera. Applications are for search for life on exoplanets, and for our own atmosphere

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Erez N. Ribak and Eyal Schwartz "Stationary Fourier transform spectrometry", Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII, 1144744 (13 December 2020); https://doi.org/10.1117/12.2559469

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