Disentangling the role of linear transition dipole in band-edge emission from single CdSe/ZnS quantum dots: Combined linear anisotropy and defocused emission pattern imaging

Austin Cyphersmith, Kevin Early, Artem Maksov, Jeremy Graham, Yikuan Wang, Michael Barnes

Research output: Contribution to journalArticle

Abstract

Combined linear anisotropy and defocused wide-field fluorescence imaging of individual CdSe/ZnS quantum dots reveal an unambiguous contribution of a linear transition dipole polarized along the hexagonal (c-) symmetry axis of the nanocrystal which grows with increasing tilt angle of the c-axis with respect to the surface normal. These results offer some insights into quantum dot luminescence polarization dynamics, and provide a basis for unambiguously assigning the two Euler angles describing the c-axis orientation from defocused emission patterns for multidipole systems.

Original languageEnglish (US)
Article number121915
JournalApplied Physics Letters
Volume97
Issue number12
DOIs
StatePublished - Sep 20 2010

    Fingerprint

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this