A new quantum sensor developed by researchers at the University of Waterloo’s Institute for Quantum Computing (IQC) has proven it can outperform existing technologies and promises significant advancements in long-range 3D imaging and monitoring the success of cancer treatments.
The sensors are the first of their kind and are based on semiconductor nanowires that can detect single particles of light with high timing resolution, speed and efficiency over an unparallel wavelength range, from ultraviolet to near-infrared.
The technology also has the ability to significantly improve quantum communication and remote sensing capabilities.
“A sensor needs to be very efficient at detecting light. In applications like quantum radar, surveillance, and nighttime operation, very few particles of light return to the device,” said principal investigator Michael Reimer, an IQC faculty member and assistant professor in the Faculty of Engineering’s electrical and computer engineering department. “In these cases, you want to be able to detect every single photon coming in.”
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Image: Artist's rendering of the interaction of single incident photon pulses and a tapered semiconductor nanowire array photodetector. Credit: University of Waterloo