Prescott, Samuel;
Iyer, Prasad P;
Addamane, Sadhvikas;
Jung, Hyunseung;
Luk, Ting S;
Brener, Igal;
Mitrofanov, Oleg;
(2024)
Mie metasurfaces for enhancing photon outcoupling from single embedded quantum emitters.
Nanophotonics
10.1515/nanoph-2024-0300.
(In press).
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Abstract
Solid-state quantum emitters (QE) can produce single photons required for quantum information processing. However, their emission properties often exhibit poor directivity and polarisation definition resulting in considerable loss of generated photons. Here we propose and numerically evaluate Mie metasurface designs for outcoupling photons from an embedded and randomly-positioned QE. These Mie metasurface designs can provide over one order of magnitude enhancement in photon outcoupling with only several percent of photons being lost. Importantly, the Mie metasurfaces provide the enhancement in photon outcoupling without the need for strict QE position alignment and without affecting the intrinsic QE emission rate (Purcell enhancement). Electric dipole modes are key for achieving the enhancement and they offer a path for selective outcoupling for photons emitted with specific polarisation, including the out-of-plane polarisation. Mie metasurfaces can provide an efficient, polarisation-selective and scalable platform for QEs.
| Type: | Article |
|---|---|
| Title: | Mie metasurfaces for enhancing photon outcoupling from single embedded quantum emitters |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1515/nanoph-2024-0300 |
| Publisher version: | https://doi.org/10.1515/nanoph-2024-0300 |
| Language: | English |
| Additional information: | © 2024 the author(s), published by De Gruyter. This work is licensed under the Creative Commons Attribution 4.0 International License. |
| Keywords: | Single photon source; metasurface; quantum information; quantum dot; quantum emitter; Mie resonator |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10207269 |
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