Near-infrared InGaAs detectors for background-limited imaging and photometry

Originally designed for night-vision equipment, InGaAs detectors are beginning to achieve background-limited performance in broadband imaging from the ground. The lower cost of these detectors can enable multi-band instruments, arrays of small telescopes, and large focal planes that would be unecono...

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Bibliographic Details
Main Authors: Sullivan, Peter W. (Contributor), Simcoe, Robert A. (Contributor), Croll, Bryce J. (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), MIT Kavli Institute for Astrophysics and Space Research (Contributor)
Format: Article
Language:English
Published: SPIE, 2015-09-01T16:15:47Z.
Subjects:
Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Sullivan, Peter W.  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Physics  |e contributor 
100 1 0 |a MIT Kavli Institute for Astrophysics and Space Research  |e contributor 
100 1 0 |a Sullivan, Peter W.  |e contributor 
100 1 0 |a Croll, Bryce J.  |e contributor 
100 1 0 |a Simcoe, Robert A.  |e contributor 
700 1 0 |a Simcoe, Robert A.  |e author 
700 1 0 |a Croll, Bryce J.  |e author 
245 0 0 |a Near-infrared InGaAs detectors for background-limited imaging and photometry 
260 |b SPIE,   |c 2015-09-01T16:15:47Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/98293 
520 |a Originally designed for night-vision equipment, InGaAs detectors are beginning to achieve background-limited performance in broadband imaging from the ground. The lower cost of these detectors can enable multi-band instruments, arrays of small telescopes, and large focal planes that would be uneconomical with high-performance HgCdTe detectors. We developed a camera to operate the FLIR AP1121 sensor using deep thermoelectric cooling and up-the-ramp sampling to minimize noise. We measured a dark current of 163 e- s[superscript -1] pix[superscript -1], a read noise of 87 e- up-the-ramp, and a well depth of 80k e-. Laboratory photometric testing achieved a stability of 230 ppm hr[superscript -1/2], which would be required for detecting exoplanet transits. InGaAs detectors are also applicable to other branches of near-infrared time-domain astronomy, ranging from brown dwarf weather to gravitational wave follow-up. 
520 |a United States. National Aeronautics and Space Administration (Sagan Fellowship) 
520 |a Natural Sciences and Engineering Research Council of Canada 
546 |a en_US 
655 7 |a Article 
773 |t Proceedings of SPIE--the International Society for Optical Engineering