19 July 2010 Testing of an extended-wavelength InGaAs array in an astronomical spectrograph
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Abstract
We present the integration of a low dark current extended wavelength (2.3μm cutoff) InGaAs array into the Cornell-Massachusetts Slit Spectrograph (CorMASS) spectrograph. The InGaAs array was fabricated onto a SB- 206 512×512 readout integrated circuit (ROIC) by Goodrich/Sensors Unlimited and subsequently went through a series of laboratory characterization tests at the University of Virginia demonstrating dark current performance of better than 10 e-/s. The InGaAs array is adapted for use with the CorMASS to verify its performance in a proven astronomical instrument, and for eventual deployment to a telescope to test stability and performance.
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Matthew Nelson, Matthew Nelson, Lihong Yao, Lihong Yao, Andre F. Wong, Andre F. Wong, Michael Skrutskie, Michael Skrutskie, John C. Wilson, John C. Wilson, Shrikrishna Kanneganti, Shrikrishna Kanneganti, } "Testing of an extended-wavelength InGaAs array in an astronomical spectrograph", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 774224 (19 July 2010); doi: 10.1117/12.858003; https://doi.org/10.1117/12.858003
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