Alpha-particle-induced luminescence from multiple quantum wells

J. K. Kuntrotas; Adolfas Dargys; S. C.G. Granja; Klaus Koehler; Stanislav Pospisil; V. Remeikis; K. M. Smith

doi:10.1117/12.417594

8 March 2001 Alpha-particle-induced luminescence from multiple quantum wells

J. K. Kuntrotas, Adolfas Dargys, S. C.G. Granja, Klaus Koehler, Stanislav Pospisil, V. Remeikis, K. M. Smith

Proceedings Volume 4318, Smart Optical Inorganic Structures and Devices; (2001) https://doi.org/10.1117/12.417594
Event: Advanced Optical Materials and Devices, 2000, Vilnius, United States

Abstract

The luminescence induced by alpha particles in GaAs/Al_0.35Ga_0.65As 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.

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J. K. Kuntrotas, Adolfas Dargys, S. C.G. Granja, Klaus Koehler, Stanislav Pospisil, V. Remeikis, and K. M. Smith "Alpha-particle-induced luminescence from multiple quantum wells", Proc. SPIE 4318, Smart Optical Inorganic Structures and Devices, (8 March 2001); https://doi.org/10.1117/12.417594

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