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Proceedings Paper

Near-IR Fabry-Perot interferometer for widefield low-resolution hyperspectral imaging on the Next Generation Space Telescope
Author(s): 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
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Paper 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.

Paper Details

Date Published: 28 July 2000
PDF: 11 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393959
Show Author Affiliations
Richard K. Barry, NASA Goddard Space Flight Ctr. (United States)
Shobita Satyapal, Space Telescope Science Institute (United States)
Matthew A. Greenhouse, NASA Goddard Space Flight Ctr. (United States)
Richard B. Barclay, NASA Goddard Space Flight Ctr. (United States)
Deborah D. Amato, NASA Goddard Space Flight Ctr. (United States)
Brandon Arritt, U.S. Air Force (United States)
Gary Brown, NASA Goddard Space Flight Ctr. (United States)
Vanessa Harvey, NASA Goddard Space Flight Ctr. (United States)
Christopher Holt, NASA Goddard Space Flight Ctr. (United States)
Jonathan L. Kuhn, NASA Goddard Space Flight Ctr. (United States)
Lawrence Lesyna, Lockheed Martin Corp. (United States)
Nils J. Fonneland, Northrop Grumman Corp. (United States)
Theodore W. Hilgeman, Northrop Grumman Corp. (United States)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

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