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Title
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Kerr nonlinearity due to intersubband transitions in a three-level InAs/GaAs quantum dot: the impact of a wetting layer on dispersion curves
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Type
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JournalPaper
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Keywords
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quantum dot, wetting layer, dispersion, absorption, Kerr nonlinearity
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Abstract
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We report Kerr nonlinearity due to intersubband transitions in a three-level InAs/GaAs domeshaped quantum dots (QDs) system. The impact of wetting layer and dot size on the electronic, linear and nonlinear optical properties is discussed. The results showed an overall shift of dispersion curves towards lower frequencies, pronounced reshaping of absorption and dispersion curves, and two orders of magnitude enhancement in Kerr nonlinearity due to the presence of a wetting layer.
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Researchers
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Vahid Fallahi (Fourth Researcher), Mostafa Sahrai (Third Researcher), Mohammad Sabaeian (Second Researcher), Ali Khaledi-Nasab (First Researcher)
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