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Influence of carrier concentration on properties of InAs waveguide layers in interband cascade laser structures

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Dyksik_2016_JAP_Influence_AAM.pdf (806.2Kb)
Date
28/07/2016
Author
Dyksik, M
Motyka, M
Sęk, G
Misiewicz, J
Dallner, M
Hoefling, Sven
Kamp, M
Keywords
QC Physics
T Technology (General)
NDAS
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Abstract
We present a characterization of doped InAs layers in interband cascade lasers exploiting the plasmon-enhanced waveguiding. Fast differential reflectance was employed in order to identify the plasma-edge frequency via the Berreman effect and shown as an advantageous method when compared to other types of measurements. The carrier concentration was then derived and compared with the nominal doping densities. The emission properties of the investigated structures were studied by means of photoluminescence (PL). Its full-width at half-maximum and integrated intensity were extracted from PL spectra and analyzed in the function of the doping density (carrier concentration). The PL linewidth was found to be independent of the carrier concentration indicating an insignificant contribution of doping to the structural properties deterioration. The PL intensity decay with the carrier concentration suggests being dominated by Auger recombination losses.
Citation
Dyksik , M , Motyka , M , Sęk , G , Misiewicz , J , Dallner , M , Hoefling , S & Kamp , M 2016 , ' Influence of carrier concentration on properties of InAs waveguide layers in interband cascade laser structures ' , Journal of Applied Physics , vol. 120 , no. 4 , 043104 . https://doi.org/10.1063/1.4958904
Publication
Journal of Applied Physics
Status
Peer reviewed
DOI
https://doi.org/10.1063/1.4958904
ISSN
0021-8979
Type
Journal article
Rights
© 2016, Publisher / the Authors. This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at http://dx.doi.org/10.1063/1.4958904
Description
The work has supported by the European Commission within the Project WideLase (No. 318798) of the 7-th Framework Programme and by the National Science Center of Poland by the Grant No. 2014/15/B/ST7/04663.
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  • University of St Andrews Research
URI
http://hdl.handle.net/10023/9214

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