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Off-Normal Polarized Single-Photon Emission with Anisotropic Holography Metasurfaces.

Authors :
Liu X
Kan Y
Kumar S
Kulikova LF
Davydov V
Agafonov V
Ding F
Bozhevolnyi SI
Source :
Nano letters [Nano Lett] 2024 Oct 30; Vol. 24 (43), pp. 13867-13873. Date of Electronic Publication: 2024 Sep 19.
Publication Year :
2024

Abstract

Solid-state quantum emitters (QEs) with arbitrary direction emission and well-defined polarization are critical for scalable single-photon sources and quantum information processing. However, the design strategy for on-chip generation of off-normal photon emission with high-purity polarization characteristics has so far remained elusive. Here, we introduce the anisotropic holography metasurfaces for efficiently manipulating the emission direction and polarization of QE. The proposed method offers a flexible way to realize phase matching in surface plasmon scattering with spatially varying filling factors and provides an efficient route for designing advanced QE-coupled metasurfaces. By nonradiatively coupling nanodiamonds with metasurfaces, we experimentally demonstrate on-chip generation of well-collimated single-photon emission propagating along off-normal directions (i.e., 20° and 30°) featuring a divergence angle lower than 2.5°. The experimental average degree of linear polarization attains up to >0.98, thereby revealing markedly high polarization purity. This study facilitates applications of QEs in the deployment of integrated quantum networks.

Details

Language :
English
ISSN :
1530-6992
Volume :
24
Issue :
43
Database :
MEDLINE
Journal :
Nano letters
Publication Type :
Academic Journal
Accession number :
39297742
Full Text :
https://doi.org/10.1021/acs.nanolett.4c03258