New metamaterials for studying the oldest light in the universe

February 19, 2021

To capture the light from the CMB, the electromagnetic echo of the Big Bang, researchers use specialized telescopes equipped with ultrasensitive cameras for detecting millimeter-wavelength signals. The next-generation cameras will contain up to 100,000 superconducting detectors.

Fermilab scientist and University of Chicago Associate Professor Jeff McMahon and his team have developed a new type of metamaterials-based antireflection coating for the silicon lenses used in these cameras.

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