Spatiotemporal characterization of SPP pulse propagation in two-dimensional plasmonic focusing devices.
basic_science · Level V
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- Record sourced from PubMed, PMID 23432531.
- Also identified by DOI 10.1021/nl3042849.
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Abstract
The spatiotemporal evolution of a SPP wave packet with femtosecond duration is experimentally investigated in two different plasmonic focusing structures. A two-dimensional reconstruction of the plasmonic field in space and time is possible by the numerical analysis of interferometric time-resolved photoemission electron microscopy data. We show that the time-integrated and time-resolved view onto the wave packet dynamics allow one to characterize and compare the capabilities of two-dimensional components for use in plasmonic devices operating with ultrafast pulses.