1.CEMES-CNRS, Université de Toulouse, Toulouse, France
2.ICB, Université de Bourgogne, CNRS, Dijon, France
3.LAAS-CNRS, Université de Toulouse, Toulouse, France
4.CEA-LETI, Université Grenoble-Alpes, Grenoble, France
5.Université de Lyon, Université Lyon 1, CNRS UMR 5510, ILM, Villeurbanne, France
6.Université de Lyon, INSA Lyon, CNRS, Ecole Centrale de Lyon, Université Lyon 1, CPE, UMR 5270, INL, Villeurbanne, France
Vincent Paillard (vincent.paillard@cemes.fr)
纸质出版日期:2023-10-31,
网络出版日期:2023-09-19,
收稿日期:2023-03-21,
修回日期:2023-06-22,
录用日期:2023-07-13
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Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams[J]. LSA, 2023,12(10):2248-2255.
Montagnac, M. et al. Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams. Light: Science & Applications, 12, 2248-2255 (2023).
Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams[J]. LSA, 2023,12(10):2248-2255. DOI: 10.1038/s41377-023-01229-9.
Montagnac, M. et al. Control of light emission of quantum emitters coupled to silicon nanoantenna using cylindrical vector beams. Light: Science & Applications, 12, 2248-2255 (2023). DOI: 10.1038/s41377-023-01229-9.
Light emission of europium (Eu
3+
) ions placed in the vicinity of optically resonant nanoantennas is usually controlled by tailoring the local density of photon states (LDOS). We show that the polarization and shape of the excitation beam can also be used to manipulate light emission
as azimuthally or radially polarized cylindrical vector beam offers to spatially shape the electric and magnetic fields
in addition to the effect of silicon nanorings (Si-NRs) used as nanoantennas. The photoluminescence (PL) mappings of the Eu
3+
transitions and the Si phonon mappings are strongly dependent of both the excitation beam and the Si-NR dimensions. The experimental results of Raman scattering and photoluminescence are confirmed by numerical simulations of the near-field intensity in the Si nanoantenna and in the Eu
3+
-doped film
respectively. The branching ratios obtained from the experimental PL maps also reveal a redistribution of the electric and magnetic emission channels. Our results show that it could be possible to spatially control both electric and magnetic dipolar emission of Eu
3+
ions by switching the laser beam polarization
hence the near field at the excitation wavelength
and the electric and magnetic LDOS at the emission wavelength. This paves the way for optimized geometries taking advantage of both excitation and emission processes.
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