BARRIER THICKNESS DEPENDENCE OF OPTICAL ABSORPTION OF EXCITONS INGaAsCOUPLED QUANTUM WIRE

E. Kasapoglu (), M. Gunes, H. Sari and I. Sökmen
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E. Kasapoglu: Physics Department, Cumhuriyet University, 58140 Sivas, Turkey
M. Gunes: Physics Department, Cumhuriyet University, 58140 Sivas, Turkey
H. Sari: Physics Department, Cumhuriyet University, 58140 Sivas, Turkey
I. Sökmen: Physics Department, Dokuz Eylül University, Izmir, Turkey

Surface Review and Letters (SRL), 2004, vol. 11, issue 01, 49-55

Abstract: We have calculated the binding energy of excitons, and the interband optical absorption in rectangular coupled quantum-well wires ofGaAssurrounded byGa1-xAlxAsin effective-mass approximation, using the variational approach. Results obtained show that the exciton binding energies and optical absorption depend on the sizes of the wire and barrier thickness. To the best of our knowledge the exciton binding energy and interband optical absorption in the rectangular coupled quantum wires have not been clarified yet.

Keywords: Exciton binding energy; exciton absorption; coupled quantum wires; 71.35.-y; 71.35. Cc (search for similar items in EconPapers)
Date: 2004
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DOI: 10.1142/S0218625X04005810

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