Dual-channel upconversion detector

The results of one of my last projects at Stanford, done in collaboration with Paulina Kuo and Xiao Tang of the NIST Information Technology Lab, on a dual-channel upconversion single-photon detector, have just been published in Optics Express (open access).  You can also read a lay-level description of the research in NIST's internal publication Tech Beat: we're grateful for their interest in the work!

Credit: Talbott/NIST

Here's a photo of the input of the device we made.  Coming from the top is an optical fiber terminated in a glass ferrule which we've attached to the input of the waveguide (the transparent glass-looking chip).  We think there should be some interesting further uses of this device in quantum communications systems.