Testing of an extended-wavelength InGaAs array in an astronomical spectrograph

Matthew Nelson; Lihong Yao; Andre F. Wong; Michael Skrutskie; John C. Wilson; Shrikrishna Kanneganti

doi:10.1117/12.858003

19 July 2010 Testing of an extended-wavelength InGaAs array in an astronomical spectrograph

Matthew Nelson, Lihong Yao, Andre F. Wong, Michael Skrutskie, John C. Wilson, Shrikrishna Kanneganti

Proceedings Volume 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV; 774224 (2010) https://doi.org/10.1117/12.858003
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

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.

Citation Download Citation

Matthew Nelson, Lihong Yao, Andre F. Wong, Michael Skrutskie, John C. Wilson, and 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); https://doi.org/10.1117/12.858003

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