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Creators/Authors contains: "Hopper, David A."

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  1. ; ; ; ; ; ; ; ; ; (, Nano Letters)
    Free, publicly-accessible full text available June 11, 2025
  2. ; ; ; ; (, PRX Quantum)
    Full Text Available 
  3. ; ; ; ; ; ; (, IEEE Transactions on Microwave Theory and Techniques)
    Full Text Available 
  4. ; ; ; ; ; ; ; ; (, PRX Quantum)
    Full Text Available 
  5. ; ; ; ; ; ; (, 2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC))
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  6. ; ; ; (, Physical Review Applied)
    null (Ed.)
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  7. ; ; ; ; ; ; (, ACS Photonics)
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  8. ; ; ; ; ; ; ; ; (, Nature Communications)
    Abstract Quantum emitters such as the diamond nitrogen-vacancy (NV) center are the basis for a wide range of quantum technologies. However, refraction and reflections at material interfaces impede photon collection, and the emitters’ atomic scale necessitates the use of free space optical measurement setups that prevent packaging of quantum devices. To overcome these limitations, we design and fabricate a metasurface composed of nanoscale diamond pillars that acts as an immersion lens to collect and collimate the emission of an individual NV center. The metalens exhibits a numerical aperture greater than 1.0, enabling efficient fiber-coupling of quantum emitters. This flexible design will lead to the miniaturization of quantum devices in a wide range of host materials and the development of metasurfaces that shape single-photon emission for coupling to optical cavities or route photons based on their quantum state. 
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