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Proceedings Paper

Alpha-particle-induced luminescence from multiple quantum wells
Author(s): J. K. Kuntrotas; Adolfas Dargys; S. C.G. Granja; Klaus Koehler; Stanislav Pospisil; V. Remeikis; K. M. Smith
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Paper Abstract

The luminescence induced by alpha particles in GaAs/Al0.35Ga0.65As multiple quantum well (MQW) semiconductor was detected and investigated. The luminescence was observed at liquid nitrogen and at room temperatures as light flashes induced by individual (alpha) -particles. The MQW samples studied, in addition, were investigated using standard photoluminescence method to show that (alpha) - particle created flashes are associated with a radiative decay of 2D excitons in quantum wells. Since the number of detected light quanta in a flash is critical, a discussion of the collection efficiency of photons created by a single (alpha) -particle is presented.

Paper Details

Date Published: 8 March 2001
PDF: 6 pages
Proc. SPIE 4318, Smart Optical Inorganic Structures and Devices, (8 March 2001); doi: 10.1117/12.417594
Show Author Affiliations
J. K. Kuntrotas, Semiconductor Physics Institute (Lithuania)
Adolfas Dargys, Semiconductor Physics Institute (Lithuania)
S. C.G. Granja, Czech Technical Univ. (Czech Republic)
Klaus Koehler, Fraunhofer-Institut fuer Angewandte Festkoeperphysik (Germany)
Stanislav Pospisil, Czech Technical Univ. (Czech Republic)
V. Remeikis, Institute of Physics (Lithuania)
K. M. Smith, Univ. of Glasgow (United Kingdom)

Published in SPIE Proceedings Vol. 4318:
Smart Optical Inorganic Structures and Devices
Steponas P. Asmontas; Jonas Gradauskas, Editor(s)

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