Refractive index dynamics of quantum dot based waveguide electroabsorbers

Tomasz Piwonski; Jaroslaw Pulka; Evgeny A. Viktorov; Guillaume Huyet; John Houlihan

doi:10.1063/1.3476347

Refractive index dynamics of quantum dot based waveguide electroabsorbers

Tomasz Piwonski
, Jaroslaw Pulka
, Evgeny A. Viktorov
, Guillaume Huyet
, John Houlihan

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	051107
Journal	Applied Physics Letters
Volume	97
Issue number	5
DOIs	https://doi.org/10.1063/1.3476347
Publication status	Published - 2 Aug 2010

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title = "Refractive index dynamics of quantum dot based waveguide electroabsorbers",

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.",

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AU - Viktorov, Evgeny A.

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AU - Houlihan, John

PY - 2010/8/2

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AB - 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.

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DO - 10.1063/1.3476347

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VL - 97

JO - Applied Physics Letters

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Refractive index dynamics of quantum dot based waveguide electroabsorbers

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