Quantum Photonics in the Frequency Domain

Alexander Gaeta, Columbia University

Tuesday, January 28, 10:30 am – 11:30 am
Electrical Engineering Building, Room 105

Abstract: Quantum frequency conversion is the process by which the wavelength of a light field is converted to another wavelength while still fully maintaining its quantum state.  We describe our recent research that utilizes the nonlinear optical process of four-wave mixing to perform ultralow noise quantum frequency conversion with efficiencies approaching 100%.  We also show how this nonlinear process can be used to realize other novel quantum phenomena in the frequency domain including Hong-Ou-Mandel interference, near-deterministic single-photon generation, single-photon Ramsey interference, and temporal magnification of single-photon pulses.