Measurement of Nanoplasmonic Field Enhancement with Ultrafast Photoemission.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28094992.
- Also identified by DOI 10.1021/acs.nanolett.6b04893.
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Abstract
Probing nanooptical near-fields is a major challenge in plasmonics. Here, we demonstrate an experimental method utilizing ultrafast photoemission from plasmonic nanostructures that is capable of probing the maximum nanoplasmonic field enhancement in any metallic surface environment. Directly measured field enhancement values for various samples are in good agreement with detailed finite-difference time-domain simulations. These results establish ultrafast plasmonic photoelectrons as versatile probes for nanoplasmonic near-fields.
Medical subject headings
- Metal Nanoparticles