Photonics Research, 2019, 7 (10): 10001142, Published Online: Sep. 18, 2019
Coherent couplings between magnetic dipole transitions of quantum emitters and dielectric nanostructures 
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Fig. 1. (a) Schematic of a hybrid system under study. (b) Quantum transition of a MD emitter.
Fig. 2. Extinction spectra of a coupled system in the weak and strong light intensity regimes. (a), (c) The extinction spectra of the individual and coupled ion cluster in the weak (a) and strong (c) light intensity regime. The insets are the population difference spectra of the individual ions and the coupled ions. (b), (d) The extinction spectra of the coupled Si sphere and the hybrid structure in the weak (b) and strong (d) light intensity regime. The insets are the extinction spectra for a wider frequency regime.
Fig. 3. Magnetic polarizabilities α MD B MD m MD α MD B MD m MD
Fig. 4. Extinction spectra of (a) the ion cluster and (b) the whole system with different light intensities.
Fig. 5. Extinction spectra of the ion cluster and the whole system with varying (a)–(d) the MD matrix element μ MD N N
Fig. 6. Extinction spectra of the ion cluster and the hybrid structure with different lifetimes T 1 T 2 ( T 1 = T 2 )
Fig. 7. Extinction spectra of the ion cluster and the hybrid structure with different distance d d
Fig. 8. Extinction spectra of the GaP-based hybrid structure. (a) Schematic of the system with a GaP sphere. (b), (d) The extinction spectra of the coupled ion cluster in the weak (b) and strong (d) light intensity regime. (c), (e) The extinction spectra of the hybrid structure in the weak (c) and strong (e) light intensity regime.
Fig. 11. FDTD and analysis results of the extinction spectra of the system. (a), (b) The extinction spectra of the magnetic Lorentz sphere and the Si sphere by FDTD simulations. (c), (d) The extinction spectra of the ion cluster and the Si sphere by analytical calculation (I 0 = 10 4 W / cm 2
Fig. 12. Total magnetic field felt by the ion cluster with different μ MD N T 2 B MD μ MD B MD N B MD T 2 T 1
Qian Zhao, Zhong-Jian Yang, Jun He. Coherent couplings between magnetic dipole transitions of quantum emitters and dielectric nanostructures[J]. Photonics Research, 2019, 7(10): 10001142.
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