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Dielectric function of quantum dots in the strong confinement regime
KTH, Skolan för informations- och kommunikationsteknik (ICT), Fotonik och optik, Fotonik.
KTH, Skolan för informations- och kommunikationsteknik (ICT), Fotonik och optik.
2010 (engelsk)Inngår i: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 107, nr 6Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The complex dielectric function of quantum dots (QDs) with a core-shell structure is modeled in the strong confinement regime. These results should be useful for the design of negative epsilon optical metamaterials, where the gain due to QDs could be an essential ingredient. Using the dielectric function it is also shown that conventional expressions for the gain substantially overestimate it for narrow linewidths.

sted, utgiver, år, opplag, sider
2010. Vol. 107, nr 6
Emneord [en]
absorption coefficients, colloids, dielectric function, gallium, arsenide, ground states, III-V semiconductors, indium compounds, semiconductor quantum dots, gain-assisted propagation, wave-guides, semiconductors, threshold, electron, lasers
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Identifikatorer
URN: urn:nbn:se:kth:diva-19361DOI: 10.1063/1.3309343ISI: 000276210800087Scopus ID: 2-s2.0-77950553211OAI: oai:DiVA.org:kth-19361DiVA, id: diva2:337408
Forskningsfinansiär
Swedish Research Council
Merknad
QC 20110119Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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