Direct interband light absorption in a cylindrical quantum dot in quantizing magnetic field |
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Authors: | M S Atoyan E M Kazaryan H A Sarkisyan |
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Institution: | Department of Physics, Yerevan State University, Al. Manoukyan Street 1, Yerevan 375025, Armenia |
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Abstract: | In this paper the direct interband transitions in cylindrical quantum dot (QD) made of GaAs are studied in the presence of a magnetic field. Two models of QD confinement potential are discussed. For both models the expressions for absorption coefficients and dependencies of effective threshold frequencies of absorption on the value of applied magnetic field and on geometrical sizes of QD are obtained. The selection rules corresponding to different transitions between quantum levels are found. |
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Keywords: | Absorption coefficient Quantum dot Magnetic field |
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