Super-Conducting Single Photon Detector

A very fast, very sensitive single-photon, time-resolving detector for photons in wavelengths from the visible to the far infrared, using a super-conducting material.

Single photon detectors may be used in systems for free space and satellite communications and studies of weak luminescence and semiconductor device testing.    They may also be used in quantum cryptographic systems, which would support the most secure method of communication possible, guaranteed by the inviolability of the laws of quantum mechanics.

The principal benefit of this invention, which uses a superconducting material, is the ability to detect photons in the infrared wavelengths typically used in optical communication.  Other available single-photon detectors function only in the visible or shorter wavelengths.

URV Reference Number: 2-11144-954
Patent Information:
Title Country Patent No. Issued Date
Superconducting Single Photon Detector United States 6,812,464 11/2/2004
Super-Conducting Single Photon Detector United States 7,049,593 5/23/2006
For Information, Contact:
Curtis Broadbent
Licensing Manager
University of Rochester
Roman Sobolewski
Gregory Goltsman
Alex Semenov
Oleg Okunev
Ken Wilsher
Steven Kasapi