banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Strongly coupled single quantum dot in a photonic crystal waveguide cavity
Rent this article for
View: Figures


Image of FIG. 1.
FIG. 1.

(a) SEM image of the cavity embedded in a PhCWG with width indicated by the white double arrow, where is the lattice constant. The holes are shifted within the dashed hexagon by (red arrows) 6 nm, (yellow arrows) 4 nm, and (blue arrows) 2 nm in a 250 nm PhC lattice with hole size of about 140 nm. (b) zoomed out SEM image of (a) showing the symmetrically defined left (a) and right (c) PhCWG sections and the cavity defined at B. (c) Calculated electric field energy distribution of the cavity mode.

Image of FIG. 2.
FIG. 2.

(a) PL spectra of the resonances as the laser spot is shifted through the cavity with a 50 nm resolution XYZ stage attached to the objective. A, B, and C correspond to the sections of the PhCWG indicated in Fig. 1(b). The cavity resonance indicated by the arrow clearly disappears either sides of the cavity. (b) Recorded of the cavity resonance for various and . The guide-to-the-eye solid line shows the pronounced increased cavity losses with higher energies. The inset shows the PL of the QD ensemble. The range of energies over which the cavities were studied is shown by the gray area in the inset.

Image of FIG. 3.
FIG. 3.

(a) PL spectra of the strongly coupled QD-cavity mode system for various temperatures in steps of 0.5 K showing the anticrossing as the dot is tuned toward the cavity mode. The inset shows the PL spectrum over an extended energy range at 19 K where the cavity mode and several dots can be clearly seen. Two distinct peaks of similar line widths at resonance can be seen (red spectra). (b) Peak positions of the strongly coupled and uncoupled system for various detunings, showing a Rabi splitting of about at zero detuning. The squares indicate the measured peaks from the strongly coupled system in (a) while the red and green lines are obtained from an uncoupled dot and cavity measured on the same sample, respectively. The black lines show the calculated peak positions for a strongly coupled system for a particular detuning energy.


Article metrics loading...


Full text loading...

This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Strongly coupled single quantum dot in a photonic crystal waveguide cavity