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

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

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...

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Veröffentlicht in:Applied physics letters 2010-09, Vol.97 (12), p.121915-121915-3
Hauptverfasser: Cyphersmith, Austin, Early, Kevin, Maksov, Artem, Graham, Jeremy, Wang, Yikuan, Barnes, Michael
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container_issue 12
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container_title Applied physics letters
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creator Cyphersmith, Austin
Early, Kevin
Maksov, Artem
Graham, Jeremy
Wang, Yikuan
Barnes, Michael
description 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.
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title 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
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