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Abstract: We experimentally investigated the excitation power dependence of a stronglycoupled quantum dot QD-photonic crystal nanocavity system byphotoluminescence PL measurements. At a low-excitation power regime, weobserved vacuum Rabi doublet emission at QD-cavity resonance condition. Withincreasing excitation power, in addition to the doublet, a third emission peakappeared. This observed spectral change is unexpected from conventional atomiccavity quantum electrodynamics. The observations can be attributed to featuredpumping processes in the semiconductor QD-cavity system.



Autor: Yasutomo Ota, Naoto Kumagai, Shunsuke Ohkouchi, Masayuki Shirane, Masahiro Nomura, Satomi Ishida, Satoshi Iwamoto, Shinichi Yoroz

Fuente: https://arxiv.org/



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