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Title: Optical gain spectra of unstrained graded GaAs/AlxGa1−xAs quantum well laser
Authors: Albuquerque, Eudenilson Lins de
Fulco, Umberto Laino
Vasconcelos, Manoel Silva de
Mauriz, P. W.
Keywords: Lasers;Quantum wells;Optical gain;Luttinger–Kohn method;Abrupt/non-abrupt interfaces
Issue Date: 2012
Publisher: Elsevier
Citation: ALBUQUERQUE, E.L.; FULCO, U.L.; VASCONCELOS, M.S.; MAURIZ, P. W.. Optical gain spectra of unstrained graded GaAs/AlxGa1−xAs quantum well laser. Physics Letters A, [s.l.], v. 377, n. 7, p. 582-586, fev. 2013. Disponível em: Acesso em: 09 set. 2020.
Portuguese Abstract: We have calculated the optical gain spectra in unstrained graded GaAs/AlxGa1 − xAs single quantum well lasers as a function of the energy of the radiation, the quantum well width and the interface thickness. The optical gain spectra were calculated using the density matrix approach (Luttinger–Kohn method), considering the parabolic band model (conduction band), all subband mixing between the heavy and light holes (valence band), and the transversal electrical light polarization. Our results show that the optical peak gain is sensitive to the width and the graded profile of the interfaces, and is blue-shifted as a function of the interface width
ISSN: 0375-9601
Appears in Collections:CB - DBF - Artigos publicados em periódicos
ECT - Artigos publicados em periódicos

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