Abstract
In this work, the mutual coupling and coherent interaction of propagating and localized surface plasmons within a model-type plasmonic assembly is experimentally demonstrated, imaged, and analyzed. Using interferometric time-resolved photoemission electron microscopy the interplay between ultrashort surface plasmon polariton wave packets and plasmonic nanoantennas is monitored on subfemtosecond time scales. The data reveal real-time insights into dispersion and localization of electromagnetic fields as governed by the elementary modes determining the functionality of plasmonic operation units.
Originalsprog | Engelsk |
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Tidsskrift | Nano Letters |
Vol/bind | 14 |
Udgave nummer | 5 |
Sider (fra-til) | 2431-2435 |
Antal sider | 5 |
ISSN | 1530-6984 |
DOI | |
Status | Udgivet - 4. apr. 2014 |