Optical properties of quasi-zero-dimensional magneto-excitons |
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| Authors: | S Schmitt-Rink J B Stark W H Knox D S Chemla W Schäfer |
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| Institution: | (1) AT & T Bell Laboratories, 07974 Murray Hill, NJ, USA;(2) AT & T Bell Laboratories, 07733 Holmdel, NJ, USA;(3) Höchstleistungsrechenzentrum, Forschungszentrum Jülich, W-5170 Jülich, Germany;(4) Present address: Department of Physics and Materials Sciences Center, Philipps University, W-3550 Marburg, Germany;(5) Present address: Department of Physics, Massachusetts Institute of Technology, MA 02139 Cambridge, USA;(6) Present address: Lawrence Berkeley Laboratory and Department of Physics, University of California, 94720 Berkeley, CA, USA |
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| Abstract: | We discuss the evolution of optical properties of semiconductor quantum wells, as the quasi-two-dimensional electronic states are further confined into quasi-zero dimensions by a perpendicular magnetic field. We show that confinement in all three directions strongly modifies both linear and nonlinear optical response. In particular, quasi-zero-dimensionality makes an ensemble of magneto-excitons a unique many-body system, distinct from higher-dimensional excitons and the one-component Coulomb system in the fractional quantum Hall regime or Wigner crystal. |
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| Keywords: | 71 35 78 20 |
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