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Strong coupling through optical positioning of a quantum dot in a photonic crystal cavity
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View: Figures


Image of FIG. 1.
FIG. 1.

[(a) and (b)] Representative dot and wall scan data, respectively. The open circles are measured data and the blue lines are fits to the data. The inset shows a SEM image of the gold walls. (c) Histogram of the -position of the quantum dot relative to one of the gold walls. This set of 106 scans yielded a statistical uncertainty in the dot -position of 2 nm, given by , where is the standard deviation of the Gaussian distribution, and is the number of scans.

Image of FIG. 2.
FIG. 2.

(a) Simulated electric field intensity in the modified -type cavity. The color scale goes from black (zero) to white (maximum intensity). (b) SEM image of a photonic crystal positioned near the center of a set of four gold markers. The lines on the upper and left markers are due to the detection procedure of the electron beam writer.

Image of FIG. 3.
FIG. 3.

(a) Measured density plot of the spectra as the cavity mode is tuned into and out of resonance with the quantum dot exciton. is the uncoupled mode wavelength. The dashed lines are the calculated peak positions which agree well with the measured positions. (b) Individual spectra at different values of , the uncoupled cavity mode detuning from resonance in nm.

Image of FIG. 4.
FIG. 4.

measurement under pulsed excitation taken at the frequency of one of the polariton peaks. The peak at has an integrated area of the average area of the peaks at other times, demonstrating strong antibunching.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Strong coupling through optical positioning of a quantum dot in a photonic crystal cavity