Optical field emission from resonant gold nanorods driven by femtosecond mid-infrared pulses
Source abstract
Abstract
We demonstrate strong-field photoelectron emission from gold nanorods driven by femtosecond mid-infrared optical pulses. The maximum photoelectron yield is reached at the localized surface plasmon resonance, indicating that the photoemission is governed by the resonantly-enhanced optical near-field. The wavelength- and field-dependent photoemission yield allows for a noninvasive determination of local field enhancements, and we obtain intensity enhancement factors close to 1300, in good agreement with finite-difference time domain computations.
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Research context
OpenAlex topics: Laser-Matter Interactions and Applications · Gold and Silver Nanoparticles Synthesis and Applications · Ion-surface interactions and analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Tokyo University of Agriculture and Technology 1 Department of Applied Physics, , 2-24-16 Nakacho, Koganei Tokyo 184-8588, Japan
the University of Tokyo 2 Institute of Industrial Science, , 4-6-1 Komaba, Meguro-ku, Tokyo 153-8505, Japan
University of Göttingen 3 4th Physical Institute – Solids and Nanostructures, , 37077 Göttingen, Germany
Funding
Deutsche Forschungsgemeinschaft · Japan Society for the Promotion of Science
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