Coherence and dephasing in self-assembled quantum dots: (invited)

Jørn Märcher Hvam, K. Leosson, Dan Birkedal

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    481 Downloads (Pure)

    Abstract

    We measured dephasing times in InGaAl/As self-assembled quantum dots at low temperature using degenerate four-wave mixing. At 0K, the coherence time of the quantum dots is lifetime limited, whereas at finite temperatures pure dephasing by exciton-phonon interactions governs the quantum dot coherence. The inferred homogeneous line widths are significantly smaller than the line widths usually observed in the photoluminescence from single quantum dots indicating an additional inhomogeneours broadening mechanism in the latter.
    Original languageEnglish
    Title of host publicationThird IEEE Conference on Nanotechnology, 2003. IEEE-NANO 2003.
    Volume1
    PublisherIEEE
    Publication date2003
    Pages122-125
    ISBN (Print)07-80-37976-4
    DOIs
    Publication statusPublished - 2003
    Event3rd IEEE Conference on Nanotechnology - San Francisco, United States
    Duration: 12 Aug 200314 Aug 2003
    Conference number: 3
    https://ieeexplore.ieee.org/xpl/conhome/8708/proceeding

    Conference

    Conference3rd IEEE Conference on Nanotechnology
    Number3
    Country/TerritoryUnited States
    CitySan Francisco
    Period12/08/200314/08/2003
    Internet address

    Bibliographical note

    Copyright: 2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

    Fingerprint

    Dive into the research topics of 'Coherence and dephasing in self-assembled quantum dots: (invited)'. Together they form a unique fingerprint.

    Cite this