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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.13/934667

Title
Energy-filtered phase retrieval using the transport of intensity equation
Author/Creator
Keast, V. J.;  Gladys, M. J.;  Peterson, T. C.;  Dwyer, C.;  Koch, C. T.;  Haber, T.
Description
Energy-filtered imaging was combined with phase retrieval to study plasmon scattering contributions to electron phase shifts surrounding gold nanoparticles. Spectral windows with sufficient energy resolution to exclude plasmon scattering were used to measure through-focal intensity derivatives and retrieve phase maps via the transport of intensity equation. Phase excursions in the phase maps that included plasmon scattering were found to disagree with theory by at least an order of magnitude. This discrepancy was attributed to subtle particle instabilities under the electron beam, which lead to systematic errors in the retrieved phase maps.
Relation
Applied Physics Letters Vol. 99, Issue 22
Publisher Link
http://dx.doi.org/10.1063/1.3663572
Date
2011
Publisher
American Institute of Physics
Keyword(s)
gold;  nanoparticles;  surface plasmons;  collective excitations;  nanocrystals
Resource Type
journal article
Rights
© American Institute of Physics
Identifier
http://hdl.handle.net/1959.13/934667
Identifier
ISSN:0003-6951
Language
eng
Reviewed
Reviewed
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Subject
"Applied Physics Letters"
 
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