Refractive index dynamics of quantum dot based waveguide electroabsorbers

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Refractive index dynamics of quantum dot based waveguide electroabsorbers

Piwonski, Tomasz; Pulka, Jaroslaw; Viktorov, Evgeny A.; Huyet, Guillaume; Houlihan, John
Date: 2010
Copyright: © 2010 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Piwonski, T., Pulka, J., Viktorov, E. A., Huyet, G. and Houlihan, J. (2010) 'Refractive index dynamics of quantum dot based waveguide electroabsorbers', Applied Physics Letters, 97(5), pp. 051107 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.3476347
Related: http://aip.scitation.org/doi/abs/10.1063/1.3476347
Citation: Piwonski, T., Pulka, J., Viktorov, E. A., Huyet, G. and Houlihan, J. (2010) 'Refractive index dynamics of quantum dot based waveguide electroabsorbers', Applied Physics Letters, 97(5), pp. 051107. doi: 10.1063/1.3476347
Published Version: 10.1063/1.3476347

Abstract:

The refractive index dynamics of InAs/GaAs quantum dot based waveguide absorbers is studied using heterodyne pump-probe measurements. Absorption reduction due to the pump can be accompanied by either positive or negative refractive index changes depending on the wavelength used. This change in sign of the phase amplitude coupling can be understood by considering the atomlike nature of the quantum dot transitions involved. (C) 2010 American Institute of Physics. (doi:10.1063/1.3476347)

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