The effective dimensionality of excitons can be drastically changed by applying an alternating electric field. On the basis of a full three-dimensional description of both coherent and incoherent phenomena in anisotropic structures it is found that appropriate applied oscillating fields change the exciton wave function from anisotropic three dimensional to basically two dimensional. This effective-dimension change is caused by dynamic localization which leads to an increase of the exciton binding energy and of the corresponding oscillator strength.
Linear and non-linear optical properties of semiconductor superlattices: Excitonic and field-induced effects / Rossi, Fausto; Meier, T.; Je, K. C.; Hader, J.; Thomas, P.; Koch, S. W.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. D CONDENSED MATTER, ATOMIC, MOLECULAR AND CHEMICAL PHYSICS, BIOPHYSICS. - ISSN 0392-6737. - 17:11-12(1995), pp. 1693-1697. [10.1007/BF02457265]
Linear and non-linear optical properties of semiconductor superlattices: Excitonic and field-induced effects
ROSSI, FAUSTO;
1995
Abstract
The effective dimensionality of excitons can be drastically changed by applying an alternating electric field. On the basis of a full three-dimensional description of both coherent and incoherent phenomena in anisotropic structures it is found that appropriate applied oscillating fields change the exciton wave function from anisotropic three dimensional to basically two dimensional. This effective-dimension change is caused by dynamic localization which leads to an increase of the exciton binding energy and of the corresponding oscillator strength.Pubblicazioni consigliate
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https://hdl.handle.net/11583/2498775
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