Quantum Detectors

(Left) Electron microscope image of a spiraling superconducting nanowire detector. (Right) Superconducting nanowire detector integrated with SiN waveguide

The single photon detectors that a currently available do not meet our requirements for the quantum optics experiments we envision. For this reason, we are developing superconducting single photon detectors with high detection efficiencies, low dark counts, high time resolution and efficient detection in the infrared. Our detectors are fabricated by patterning thin NbTiN layers on silicon substrates. We have also demonstrated that beyond single photon detection, these are also very good single electron and single alpha particle detectors.