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Title: Wavelength tuning in GaAs/AlGaAs quantum wells by InAs submonolayer insertion
Authors: Xu, Z. Y.
Wang, Jiannong
Wang, Y.
Ge, Wei-Kun
Li, Qing
Henini, M.
Li, S. S.
Keywords: Wavelength tuning
Exciton emissions
Issue Date: 3-May-1999
Citation: Journal of physics. Condensed matter, v. 11, 3 May 1999, p. 3629-3633
Abstract: Wavelength tuning of exciton emissions has been achieved simply by inserting an InAs submonolayer at the centre of GaAs quantum wells during molecular beam epitaxy growth. Photoluminescence measurements show that the emission energy can be effectively tuned from the quantum-well-determined energy down to less than the band gap of GaAs, depending on the well width as well as the InAs layer thickness. Using the effective-mass approximation, the tuning effect can be well predicted theoretically. The results reported here may provide an alternative way to tune the wavelength in optoelectronic devices.
Description: Journal of Physics: Condensed Matter © copyright (1999) IOP Publishing Ltd. The Journal's web site is located at
Appears in Collections:PHYS Conference Papers

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