A monolithic immersion metalens for imaging solid-state quantum emitters

Tzu-Yung Huang, Richard R. Grote, Sander A. Mann, David A. Hopper, Annemarie L. Exarhos, Gerald G. Lopez, Amelia R. Klein, Erik C. Garnett and Lee C. Bassett ()
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Tzu-Yung Huang: University of Pennsylvania
Richard R. Grote: University of Pennsylvania
Sander A. Mann: Center for Nanophotonics, AMOLF
David A. Hopper: University of Pennsylvania
Annemarie L. Exarhos: University of Pennsylvania
Gerald G. Lopez: University of Pennsylvania
Amelia R. Klein: University of Pennsylvania
Erik C. Garnett: Center for Nanophotonics, AMOLF
Lee C. Bassett: University of Pennsylvania

Nature Communications, 2019, vol. 10, issue 1, 1-8

Abstract: 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.

Date: 2019
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DOI: 10.1038/s41467-019-10238-5

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