Refractive index dynamics of quantum dot based waveguide electroabsorbers

Piwonski, T. and Pulka, J. and Viktorov, E. A. and Huyet, G. and Houlihan, J. (2010) Refractive index dynamics of quantum dot based waveguide electroabsorbers. Applied Physics Letters, 97 (5). p. 3.

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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]

Item Type: Article
Additional Information: ISI Document Delivery No.: 640NY Times Cited: 1 Cited Reference Count: 13 Piwonski, Tomasz Pulka, Jaroslaw Viktorov, Evgeny A. Huyet, Guillaume Houlihan, John Science Foundation Ireland [SFI 07/IN.1/I929]; INSPIRE Programme; Irish Government The authors would like to gratefully acknowledge discussions with R. J. Manning. This study has been supported by Science Foundation Ireland under Contract No. SFI 07/IN.1/I929, the INSPIRE Programme, funded by the Irish Government's Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007-2013, and the Institute of Technology Ireland's Strand I Programme and the Tyndall National Access Program. AMER INST PHYSICS MELVILLE
Uncontrolled Keywords: LASERS
Departments or Groups: Optics Research Group
Divisions: School of Science > Department of Computing, Maths and Physics
Depositing User: John Houlihan
Date Deposited: 19 Nov 2012 16:21
Last Modified: 22 Aug 2016 10:26
URI: http://repository.wit.ie/id/eprint/2000

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