NIST has patented a new single-photon detector that could revolutionize quantum encryption and sensing technologies. The detector, developed by a team including NIST, Caltech, and the University of Maryland, reduces noise and increases efficiency in single-photon detection.
Key features of the new detector include:
– Ability to detect single photons at rates up to 500 million per second
– 50% efficiency in near-infrared wavelengths (compared to 20-30% in commercial detectors)
– Improved ability to detect photons arriving at any time
Potential applications include:
– Quantum encryption (quantum key distribution)
– Atmospheric sensing and greenhouse gas detection
– High-resolution topographic mapping
The patent, issued by the USPTO on July 26, 2016, could lead to more efficient quantum communication systems and improved environmental monitoring capabilities.
Keywords: singlet, photon, detection, interferometry
