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Final-state readout of exciton qubits by observing resonantly excited photoluminescence in quantum dots
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10.1063/1.2435600
/content/aip/journal/apl/90/5/10.1063/1.2435600
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/5/10.1063/1.2435600
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) (a) Experimental setup for the measurement of resonantly excited single QD photoluminescence: (b) Micro-PL spectrum of QD ensembles at off-resonant excitation (solid line) and the spectrum of the lasers for resonant pulsed excitation (dotted line). The expanded view is shown in (c).

Image of FIG. 2.
FIG. 2.

(Color online) Temporal evolution of PL emissions from a single QD after resonant pulsed excitation. The solid line presents a fit to an exponential function. Transient PL spectra recorded at 0, 100, and are shown in the inset. The spectra are normalized to their maxima.

Image of FIG. 3.
FIG. 3.

(Color online) (top) Dependence of the time-integrated intensity of single QD resonant emissions on excitation amplitude. Fit to the data is shown by the solid line. A schematic view of resonantly excited emissions is shown in the inset. (bottom) Decay times of the PL transients as a function of excitation amplitude.

Image of FIG. 4.
FIG. 4.

(Color online) Polarized PL spectra of a single GaAs QD with varying angle of linear polarization. The energy of excitation was above the (Al, Ga)As barrier. The inset shows the integrated intensities as a function of polarization angle.

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/content/aip/journal/apl/90/5/10.1063/1.2435600
2007-01-31
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Final-state readout of exciton qubits by observing resonantly excited photoluminescence in quantum dots
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/5/10.1063/1.2435600
10.1063/1.2435600
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