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A monolithic immersion metalens for imaging solid-state quantum emitters.

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.

SUBMITTER: Huang TY

PROVIDER: S-EPMC6546684 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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A monolithic immersion metalens for imaging solid-state quantum emitters.

Huang Tzu-Yung TY Grote Richard R RR Mann Sander A SA Hopper David A DA Exarhos Annemarie L AL Lopez Gerald G GG Klein Amelia R AR Garnett Erik C EC Bassett Lee C LC

Nature communications 20190603 1

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 coll ...[more]

PMID: 31160564

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