Penn Engineers Design Nanostructured Diamond Metalens For Compact Quantum Technologies

By finding a certain kind of defect inside a block of diamond and fashioning a pattern of nanoscale pillars on the surface above it, the researchers can control the shape of individual photons emitted by the defect. Because those photons carry information about the spin state of an electron, such a system could be used as the basis for compact quantum technologies. (Illustration: Ann Sizemore Blevins)
Tzu-Yung Huang, Lee Bassett and David Hopper at work in Bassett’s Quantum Engineering Laboratory.
The researchers’ metalens, which consists of many small nanopillars, approximates the effect of a Fresnel lens to direct light from a diamond nitrogen-vacancy (NV) center into an optic fiber, eliminating the need for a bulky microscope.

Penn Engineering

University of Pennsylvania’s School of Engineering and Applied Science

Penn Engineering

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Penn Engineering

University of Pennsylvania’s School of Engineering and Applied Science