Photonics Research, 2018, 6 (3): 03000182, Published Online: Jul. 10, 2018
Optical trapping of single quantum dots for cavity quantum electrodynamics 
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Figures & Tables
Fig. 1. Optical trapping of quantum dots for the study of the strong light–matter interaction. (a) Nanotweezers with double holes in a silver patch. (b) Scattering spectrum of the nano-structure without quantum dots. The spectrum is normalized to its maximum. (c) Electric field distribution in the x – y x – z
Fig. 2. Optical force generated by the localized surface electromagnetic field. (a) Electrical field distribution of the nanocavity in the x – z x – y x – z
Fig. 3. Optical force on a quantum dot located at different positions in the cavity. (a) X x y z Z z x y 1 mW / μm 2
Fig. 4. Scattering spectra of the nanocavity and the trapped quantum dots. (a) Scattering spectrum of the nanotweezers with two quantum dots trapped at the edges of the cavity’s tips. Quantum dots are resonant with the nanocavity. (b) Scattering spectra of the nanotweezers with two trapped quantum dots having various emissions. Spectra are ordered by the detuning energy of the quantum dots from the plasmonic cavity.
Pengfei Zhang, Gang Song, Li Yu. Optical trapping of single quantum dots for cavity quantum electrodynamics[J]. Photonics Research, 2018, 6(3): 03000182.
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