Improving the light collection efficiency of silicon photomultipliers through the use of metalenses
Abstract
Metalenses are optical devices that implement nanostructures as phase shifters to focus incident light. Their compactness and simple fabrication make them a potential cost-effective solution for increasing light collection efficiency in particle detectors with limited photosensitive area coverage. Here we report on the characterization and performance of metalenses in increasing the light collection efficiency of silicon photomultipliers (SiPM) of various sizes using an LED of 630 nm, and find a six to seven-fold increase in signal for a 1.3×1.3 mm² SiPM when coupled with a 10-mm-diameter metalens manufactured using deep ultraviolet stepper lithography. Such improvements could be valuable for future generations of particle detectors, particularly those employed in rare-event searches such as dark matter and neutrinoless double beta decay.
Additional Information
© 2020 IOP Publishing Ltd and Sissa Medialab. Received 15 July 2020; Accepted 30 September 2020; Published 12 November 2020.Attached Files
Accepted Version - 2007.06678.pdf
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- 107399
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- CaltechAUTHORS:20210111-154723675
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2021-01-11Created from EPrint's datestamp field
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2021-11-16Created from EPrint's last_modified field