Abstract
The quantum dot (QD)–cavity system with deep confinement potential is usually studied by either non-resonant or quasi-resonant p-exciton pump (PEP) with the s-exciton pump (SEP) ignored. In this paper, we investigate the effect of an SEP on the emission properties of a QD–cavity system with deep confinement potential by comparing the different incoherent excitation schemes, including pumping with both s- and p-exciton pump and with PEP only. The investigation reveals that the steady-state properties such as photon statistical properties and emission spectra of the QD–cavity system are significantly affected. More importantly, after taking SEP into consideration, the lasing and self-quenching regime of the entire system will be reached at a much lower pump rate than that of the only PEP scheme.
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