Magnetic field control of the neutral and charged exciton fine structure in single quantum dashes emitting at 1.55 μm

Journal Article · Mon Feb 02 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4907650· OSTI ID:22420270

Mrowiński, P.; Musiał, A.; Maryński, A.; Syperek, M.; Misiewicz, J.; Sęk, G. ^[1]; Somers, A. ^[2]; Reithmaier, J. P. ^[2]; Höfling, S. ^[2]

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1. Laboratory for Optical Spectroscopy of Nanostructures, Department of Experimental Physics, Wrocław University of Technology, Wybrzeże Wyspiańskiego 27, Wrocław (Poland)
2. Technische Physik, University of Würzburg and Wilhelm-Conrad-Röntgen-Research Center for Complex Material Systems, Am Hubland, D-97074 Würzburg (Germany)

We investigated the neutral and charged exciton fine structure in single InAs/InGaAlAs/InP quantum dashes emitting at 1.55 μm using polarization-resolved microphotoluminescence in a magnetic field. Inverted spin configuration of horizontally [1–10] and vertically [110] polarized transitions has been observed. An in-plane magnetic field of up to 5 Tesla has been applied to tailor the fine structure, and eventually to reduce the splitting of the bright exciton states down to zero. This inverted structure has been observed for all the investigated excitons, making it a characteristic feature for this class of nanostructures with the largest splitting reduction of 170 μeV.

• OSTI ID: 22420270
• Journal Information: Applied Physics Letters, Vol. 106, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM ARSENIDES
FINE STRUCTURE
GALLIUM COMPOUNDS
INDIUM ARSENIDES
INDIUM PHOSPHIDES
MAGNETIC FIELDS
NANOSTRUCTURES
PHOTOLUMINESCENCE