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Feasibility of Gallium Nitride for Astronomical Charge-Coupled Devices

Seabroke, George M.; Aggarwal, Anmol; Puri, Nitin K.

All astronomical missions use charge-coupled devices (CCDs) as vital organs. Usually, silicon (Si) is preferred to build them, which does not perform well without enhancements such as anti-reflection (AR) coatings. Such devices exhibit poor performance in the large (> 800 nm) and small (< 500 nm) wavelength ranges, even with AR coatings. We …