A superconductor-graphene-superconductor Josephson junction has shown a noise-equivalent power of 7 x 10-19W/√Hz, which corresponds to an energy resolution of a single 32GHz photon, according to an international research team. The bolometer is embedded in a 7.9GHz microwave resonator with >99% coupling efficiency. “Our results establish that two-dimensional materials could enable the development of bolometers with the ...
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