Double-resonance spectroscopy of InAs/GaAs self-assembled quantum dots

Autor:	R. Murray, D. G. Clarke, C. R. Pidgeon, A. R. Hollingworth, I. V. Bradley, P. C. Findlay, J. A. Barker, Jon-Paul R. Wells, S. Malik, B. N. Murdin
Rok vydání:	2000
Předmět:	Physics Photoluminescence Condensed matter physics Condensed Matter::Other Quantum dot laser Quantum dot Resonance Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Thermal conduction Quantum number Spectroscopy
Zdroj:	Physical Review B, 62, R7755-R7758
ISSN:	1095-3795 0163-1829
Popis:	We present far-/near-infrared double resonance measurements of self-assembled InAs/GaAs quantum dots. The far-infrared resonance is unambiguously associated with a bound-bound intraband transition in the neutral dots. The results show that the interband photoluminescence (PL) lines originate from conduction levels with successively increasing in-plane quantum numbers. We determine the confinement energies for both electrons and holes in the same dots. Furthermore, we show that the inhomogeneous broadening of the PL cannot be attributed solely to size and composition fluctuation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2752925c1f857db22fc2fd993e5f5fb https://doi.org/10.1103/physrevb.62.r7755 Zobrazit plný text záznamu