Optical field emission from resonant gold nanorods driven by femtosecond mid-infrared pulses
作者： F. Kusa , K. E. Echternkamp , G. Herink , C. Ropers , S. Ashihara
DOI: 10.1063/1.4927151
关键词:
摘要: We demonstrate strong-field photoelectron emission from gold nanorods driven by femtosecond mid-infrared optical pulses. The maximum yield is reached at the localized surface plasmon resonance, indicating that photoemission governed resonantly-enhanced near-field. wavelength- and field-dependent allows for a noninvasive determination of local field enhancements, we obtain intensity enhancement factors close to 1300, in good agreement with finite-difference time domain computations.
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