Demonstrating sub-3 ps temporal resolution in a superconducting nanowire single-photon detector
Abstract
Improving the temporal resolution of single photon detectors has an impact on many applications, such as increased data rates and transmission distances for both classical and quantum optical communication systems, higher spatial resolution in laser ranging and observation of shorter-lived fluorophores in biomedical imaging. In recent years, superconducting nanowire single-photon detectors (SNSPDs) have emerged as the highest efficiency time-resolving single-photon counting detectors available in the near infrared. As the detection mechanism in SNSPDs occurs on picosecond time scales, SNSPDs have been demonstrated with exquisite temporal resolution below 15 ps. We reduce this value to 2.70.2 ps at 400 nm and 4.60.2 ps at 1550 nm, using a specialized niobium nitride (NbN) SNSPD. The observed photon-energy dependence of the temporal resolution and detection latency suggests that intrinsic effects make a significant contribution.
Cite
@article{arxiv.1804.06839,
title = {Demonstrating sub-3 ps temporal resolution in a superconducting nanowire single-photon detector},
author = {B. A. Korzh and Q-Y. Zhao and S. Frasca and J. P. Allmaras and T. M. Autry and E. A. Bersin and M. Colangelo and G. M. Crouch and A. E. Dane and T. Gerrits and F. Marsili and G. Moody and E. Ramirez and J. D. Rezac and M. J. Stevens and E. E. Wollman and D. Zhu and P. D. Hale and K. L. Silverman and R. P. Mirin and S. W. Nam and M. D. Shaw and K. K. Berggren},
journal= {arXiv preprint arXiv:1804.06839},
year = {2023}
}
Comments
25 pages, 9 figures