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Phase control of group-velocity-based biexciton coherence ina multiple quantum well nanostructure |
| Seyyed Hossein Asadpour, H. Rahimpour Soleimani |
| Department of Physics, University of Guilan, Rasht, Iran |
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Abstract A double cascade-type four-level multiple-quantum-well-based exciton-biexciton transitions are proposed. The study is carried out on a 4.8-nm ZnSe single-quantum well which is embedded into ZnMgSSe cladding layers and pseudomorphically grown by molecular beam epitaxy on a (0 0 1) GaAs substrate. It is displayed that the exciton spin relaxation and relative phases between applied fields can influence the transient and steady-state behaviors of absorption, dispersion, and group velocity of two weak probe and signal fields. Also, transient behaviors of electron population of different levels are discussed. It is found that the probe or signal amplification occurs in the absence of population inversion.
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Received: 08 January 2014
Revised: 05 March 2014
Accepted manuscript online:
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PACS:
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42.50.-p
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(Quantum optics)
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42.65.-k
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(Nonlinear optics)
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Corresponding Authors:
Seyyed Hossein Asadpour
E-mail: S.Hosein.Asadpour@gmail.com
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| About author: 42.50.-p; 42.65.-k |
Cite this article:
Seyyed Hossein Asadpour, H. Rahimpour Soleimani Phase control of group-velocity-based biexciton coherence ina multiple quantum well nanostructure 2014 Chin. Phys. B 23 104205
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