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2 July 2010 Improving the red wavelength sensitivity of CCDs
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Abstract
The demand for higher red wavelength sensitivity is being met by various technological developments of modern CCDs. We discuss techniques for achieving higher red wavelength sensitivity by using thicker silicon to make backthinned CCDs, which combines with very low read noise for enhanced sensitivity. Thicker devices requires higher resistivity material including bulk (non epitaxial) silicon. An extended wavelength range also places more demand on the antireflection coatings which benefit from corresponding optimisation.
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Paul R. Jorden, Mark Downing, Andrew Harris, Andrew Kelt, Pritesh Mistry, and Pash Patel "Improving the red wavelength sensitivity of CCDs", Proc. SPIE 7742, High Energy, Optical, and Infrared Detectors for Astronomy IV, 77420J (2 July 2010); https://doi.org/10.1117/12.862435
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