Magic-angle bilayer graphene nano-calorimeters - towards broadband, energy-resolving single photon detection.

  title={Magic-angle bilayer graphene nano-calorimeters - towards broadband, energy-resolving single photon detection.},
  author={Paul Seifert and Xiaobo Lu and Petr Stepanov and Jos{\'e} Ram{\'o}n Dur{\'a}n Retamal and John N. Moore and Kin Chung Fong and Alessandro Principi and Dmitri K. Efetov},
  journal={Nano letters},
Because of the ultra-low photon energies in the mid-infrared and terahertz frequencies, in these bands photodetectors are notoriously underdeveloped, and broadband single photon detectors (SPDs) are non-existent. Advanced SPDs exploit thermal effects in nanostructured superconductors, and their performance is currently limited to the more energetic near-infrared photons due to their high electronic heat capacity. Here, we demonstrate a superconducting magic-angle bilayer graphene (MAG) device… 

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