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Sonia Buckley

My research involves building integrated photonic circuits that can be used as the building blocks for I/O, computation and quantum optics. In particular, I work on developing low-power waveguide-integrated light sources and single-photon detectors. We have recently developed cryogenic waveguide-integrated silicon LEDs in a scalable lithographic process, which combined with our WSi waveguide integrated superconducting single-photon detectors, are the basic element needed for superconducting opto-electronic neuromorphic computing. These LEDs are based on luminescent centers in Si, which emit light via a radiative recombination processes that only takes place at cryogenic temperatures. However, since the SNSPDs are also cryogenically operated, this is not a disadvantage for our applications. The internal quantum efficiency of these centers is unknown, and there is a plethora of such centers to choose from, with limited prior investigation. Ultimately, I aim to combine such cryogenic LEDs with integrated photonic and superconducting circuits for cryogenic high-performance computing applications, as well as fundamental studies on their properties, and on-chip quantum optics experiments. We are also working on developing wafer-bonded low-power III-V LEDs to Si waveguides for similar applications.

Publications

Microring resonator-coupled photoluminescence from silicon W centers

Author(s)
Alexander N. Tait, Sonia M. Buckley, Jeffrey T. Chiles, Adam N. McCaughan, Sae Woo Nam, Richard P. Mirin, Jeffrey M. Shainline
Defect centers are promising candidates for waveguide-integrated silicon light sources. We demonstrate microresonator- and waveguide-coupled photoluminescence

Superconducting microwire detectors with single-photon sensitivity in the near-infrared

Author(s)
Jeffrey T. Chiles, Sonia M. Buckley, Adriana E. Lita, Varun B. Verma, Jeffrey M. Shainline, Richard P. Mirin, Sae Woo Nam, Jason Allmaras, Boris Korzh, Emma Wollman, Matthew Shaw
We report on the fabrication and characterization of single-photon-sensitive WSi superconducting detectors with wire widths from 1 υm to 3 υm. The devices
Created June 1, 2019