期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 246, 期 4, 页码 795-798出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200880610
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We present temperature dependent high resolution resonant optical spectroscopy on a single, negatively charged InGaAs quantum dot. We performed laser transmission measurements yielding the natural linewidth of the excitonic ground state transition of a quantum dot in a temperature range from 4.2 K up to 25 K. Here we describe the linewidth evolution and the temperature induced red shift of the resonance energy with simple models based on the exciton-photon coupling in the quantum dot. The resonant spectroscopy measurements are complemented with results from non-resonant PL measurements on the very same quantum dot. Here we observe a simple linear behaviour of the linewidth according to an effect of a fluctuating environment. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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