Department of Applied Physics and Materials Science - Applied Physics

Applied Physics Seminar

Tuesday October 28, 2014 4:00 PM

Superconducting Nanowire Single Photon Detector Arrays for Optical Communication and Quantum Optics

Speaker: Matt Shaw, JPL
Location: Watson 104

Tungsten Silicide Superconducting Nanowire Single Photon Detectors (WSi SNSPDs) are a revolutionary new technology for efficient time-correlated single photon counting in the near- and mid-infrared. WSi SNSPDs have recently achieved over 90% detection efficiency at 1550 nm, with ~100 ps time resolution, low dark counts, high maximum count rates, and an operating range at wavelengths as long as 5 microns. We will discuss recent progress in fabricating and reading out 64-pixel arrays of such detectors, and applications of these detectors to enable new kinds of science. Specifically, we will discuss recent progress using WSi SNSPDs for space-based optical communication experiments and quantum optics, as well as the prospects for their use in high time resolution astrophysics, physical chemistry, and remote sensing.

Series Applied Physics Seminar Series

Contact: Christy Jenstad at 8124 cjenstad@caltech.edu