Speaker – Ian Berkman, UNSW Sydney:
The past decade has seen an astonishing increase in interest in single photon detector technologies with high detection efficiency and fast reset times. Besides single-photon detectors being one of the key elements in quantum optics experiments, a major driver of the current research into achieving a high efficiency performance is the explosive growth of the field of quantum-information science[1,2]. Furthermore, fast reset times enables future quantum optics experiments that require the detection of rapid subsequent photons.
We report on a fibre-coupled single-photon detection system that uses superconducting nanowire single-photon detectors[3,4] with a system detection efficiency (including optical coupling losses) of 95% for 1550 nm including a 33 ns reset time. This exceptional performance allows us in the future to integrate the single-photon detectors in nano-electronic devices to detect single photons emitted from ions in silicon.
 Tech. Rep., Quantum Cryptography Technology Experts Panel, Advanced Research and Development Activity (ARDA) (2004)
 A. Ekert, N. Gisin, B. Huttner, H. Inamori and H. Weinfurther, in The Physics of Quantum Information (Springer, Berlin, 2000)
 G. N. Gol’tsman et al. Appl. Phys. Lett. 79, 705-707 (2001)
 F. Marsili et al. Nature 7, 3 (2013)