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spectrum at of a single QD optically excited under nonresonant condition at with a power of . Inset: Integrated PL intensity of the line as a function of power density.
Second-order correlation functions under nonresonant excitation of (a) exciton line, and of (b) biexciton line, .
and spectra of a single QD. spectrum is offset vertically for clarity; spectrum is obtained under optical excitation at . Inset: Expanded view of the spectral region near the line showing transitions associated with excited states.
(a)–(d) Second-order correlation functions recorded at different excitation energies corresponding to the spectral positions indicated in Fig. 3.
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