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Andor Technology
An Oxford Instruments Co.
Springvale Business Park
7 Millennium Way
Belfast BT12 7AL
United Kingdom
Exploring Spectroscopy eBook
Author: Antoine Varagnat
Monday, November 20, 2023
Standard back-illuminated, deep-depletion (BI-DD) CCDs offer quantum efficiencies (QE) up to 95% in the near-infrared (NIR). This makes them the detector of choice for photoluminescence, Raman or plasmonic spectroscopy in the 700 - 1,100 nm range. One disadvantage of deep-depletion devices has been a significant associated increase in dark current (~100 times) compared to standard back-illuminated, visible-optimized CCDs. This eBook explores how a new generation of Low Dark-Current, Deep-Depletion (LDC-DD) CCDs now overcomes this limitation, and challenges the need for liquid-nitrogen (LN2)-cooling for photon-starved NIR spectroscopy.
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