PT Journal
AU Loya Villalpando, AA
   Martin-Albo, J
   Chen, WT
   Guenette, R
   Lego, C
   Park, JS
   Capasso, F
TI Improving the light collection efficiency of silicon photomultipliers through the use of metalenses
SO Journal of Instrumentation
JI J. Instrum.
PY 2020
BP P11021 - 13pp
VL 15
IS 11
DI 10.1088/1748-0221/15/11/P11021
LA English
DE Optical detector readout concepts; Solid state detectors; Dark Matter detectors (WIMPS; axions; etc); Double-beta decay detectors
AB 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 x 1 3 mm(2) 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.
ER