Quantum wire heterostructures, such as V- and T-shaped wires, are very promising candidates for low-threshold lasing. A crucial issue is the excitonic vs. free-carrier nature of the radiative recombination. Here, we report on magnetophotoluminescence studies of GaAs and InGaAs V-shaped wires that allow to discriminate different regimes of radiative recombination.
Magnetic-field effects in the luminescence of V-shaped quantum wires / Rinaldi, R; Giugno, Pv; Cingolani, R; Rossi, F; Molinari, Elisa; Ferrara, M; Marti, U; Martin, D; Moriergemoud, F; Ruterana, P; Reinhart, F.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. D CONDENSED MATTER, ATOMIC, MOLECULAR AND CHEMICAL PHYSICS, BIOPHYSICS. - ISSN 0392-6737. - STAMPA. - 17:(1995), pp. 1681-1685.