Saturation spectroscopy of hot carriers in coupled double quantum well structures

WE report the first combination of far-infrared linear and nonlinear (saturation) magnetoabsorption experiments on coupled subband Landau level excitations in a series of modulation-doped multiple coupled quantum well (MCDQW) structures. Linear spectroscopy was carried out with a Fourier transform s...

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Bibliographic Details
Published in:Semiconductor science and technology 1994-05, Vol.9 (5S), p.630-633
Main Authors: Li, W J, McCombe, B D, Kaminski, J P, Allen, S J, Stockman, M I, Muratov, L S, Pandey, L N, George, T F, Schaff, W J
Format: Article
Language:English
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Summary:WE report the first combination of far-infrared linear and nonlinear (saturation) magnetoabsorption experiments on coupled subband Landau level excitations in a series of modulation-doped multiple coupled quantum well (MCDQW) structures. Linear spectroscopy was carried out with a Fourier transform spectrometer over a range of temperature and saturation spectroscopy was carried out with the free electron laser at UC Santa Barbara. Based on theoretical analysis, an electron lifetime of nearly 1.2 ns was obtained.
ISSN:0268-1242
1361-6641
DOI:10.1088/0268-1242/9/5S/062