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