2000
DOI: 10.1103/physrevb.61.16854
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Quantum-wire exciton dispersion in a multiband real-space scheme

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Cited by 9 publications
(4 citation statements)
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“…because we neglect the small light wave vector and, thus, the exciton centre-of-mass wave vector Q = 0. In passing, we note that finite-Q calculations would be valuable for dark excitons and thus for photoluminescence spectra (see Rodina et al [15]) which strongly depend on the life time, the energy and the relaxation processes of dark excitons [50,51]. Here, we focus on the reflectivity spectra and, thus, on the relative motion of the exciton.…”
Section: Initial-value Problem and Split-operator Methodsmentioning
confidence: 98%
“…because we neglect the small light wave vector and, thus, the exciton centre-of-mass wave vector Q = 0. In passing, we note that finite-Q calculations would be valuable for dark excitons and thus for photoluminescence spectra (see Rodina et al [15]) which strongly depend on the life time, the energy and the relaxation processes of dark excitons [50,51]. Here, we focus on the reflectivity spectra and, thus, on the relative motion of the exciton.…”
Section: Initial-value Problem and Split-operator Methodsmentioning
confidence: 98%
“…This simplifying assumption has been checked and numerical values for M X have been obtained for a few QW and QWR structures by multi-subband calculations taking fully into account the valence band structure withink k Áp p theory [30,31]. Large deviation from parabolicity are seen only for COM momenta far outside the light cone, i.e., for states which have little influence on optical experiments.…”
Section: Excitons In Disordered Quantum Wellsmentioning
confidence: 99%
“…Plasmons have also been studied in these systems within the use of several tools, such as, for example, magnetic field, Raman scattering, Coulomb correlation, etc. Excitons have recently been studied by Siarkos and Runge [5], in which work they compare dispersions for circular and rectangular cross-sections of QWs. Endoh et al [6] studied the dynamic behavior of wavefunctions diffracted by both (circular and rectangular) cross-sections of very short QWs.…”
Section: Introductionmentioning
confidence: 99%