Near-IR Fabry-Perot interferometer for widefield low-resolution hyperspectral imaging on the Next Generation Space Telescope

Richard K. Barry; Shobita Satyapal; Matthew A. Greenhouse; Richard B. Barclay; Deborah D. Amato; Brandon Arritt; Gary Brown; Vanessa Harvey; Christopher Holt; Jonathan L. Kuhn; Lawrence Lesyna; Nils J. Fonneland; Theodore W. Hilgeman

doi:10.1117/12.393959

28 July 2000 Near-IR Fabry-Perot interferometer for widefield low-resolution hyperspectral imaging on the Next Generation Space Telescope

Richard K. Barry, Shobita Satyapal, Matthew A. Greenhouse, Richard B. Barclay, Deborah D. Amato, Brandon Arritt, Gary Brown, Vanessa Harvey, Christopher Holt, Jonathan L. Kuhn, Lawrence Lesyna, Nils J. Fonneland, Theodore W. Hilgeman

Author Affiliations +

Proceedings Volume 4013, UV, Optical, and IR Space Telescopes and Instruments; (2000) https://doi.org/10.1117/12.393959
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

We discuss work in progress on a near-infrared tunable bandpass filter for the Goddard baseline wide field camera concept of the Next Generation Space Telescope Integrated Science Instrument Module. This filter, the Demonstration Unit for Low Order Cryogenic Etalon (DULCE), is designed to demonstrate a high efficiency scanning Fabry-Perot etalon operating in interference orders 1 - 4 at 30 K with a high stability DSP based servo control system. DULCE is currently the only available tunable filter for lower order cryogenic operation in the near infrared. In this application, scanning etalons will illuminate the focal plane arrays with a single order of interference to enable wide field lower resolution hyperspectral imaging over a wide range of redshifts. We discuss why tunable filters are an important instrument component in future space-based observatories.

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Richard K. Barry, Shobita Satyapal, Matthew A. Greenhouse, Richard B. Barclay, Deborah D. Amato, Brandon Arritt, Gary Brown, Vanessa Harvey, Christopher Holt, Jonathan L. Kuhn, Lawrence Lesyna, Nils J. Fonneland, and Theodore W. Hilgeman "Near-IR Fabry-Perot interferometer for widefield low-resolution hyperspectral imaging on the Next Generation Space Telescope", Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); https://doi.org/10.1117/12.393959

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