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Sonia Buckley (Fed)

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.


Demonstration of Superconducting Optoelectronic Single-Photon Synapses

Saeed Khan, Bryce Primavera, Jeff Chiles, Adam McCaughan, Sonia Buckley, Alexander Tait, Adriana Lita, John Biesecker, Anna Fox, David Olaya, Richard Mirin, Sae Woo Nam, Jeff Shainline
Superconducting optoelectronic hardware is being explored as a path towards artificial spiking neural networks with unprecedented scales of complexity and

Microring resonator-coupled photoluminescence from silicon W centers

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

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



NIST Inventors
Sae Woo Nam , Jeff Shainline and Sonia Buckley
patent description We propose a NC system based on superconducting detectors and electronics working with waveguide-integrated nano-LED emitters to behave as complete spiking neurons. Optical signals are communicated through reconfigurable nanophotonic waveguides, capturing the interconnectivity of
Line drawing of the thermal impedance amplifier

Thermal Impedance Amplifier

NIST Inventors
Adam McCaughan , Varun Verma , Sonia Buckley and Sae Woo Nam
Patent Description Presently, superconducting electronics are being applied to areas such as computational backends for future quantum processors, high-performance supercomputing, and ultrafast digital signal processing. In all of these areas, data must be communicated between the superconducting
Created June 1, 2019, Updated December 8, 2022