Roadmap on plasmonics
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solar (photovoltaic), solid state lighting, phonon↗
Engineering topics
MacDonald, Kevin F.
Publications and source records attributed to MacDonald, Kevin F..
Fiber optic probe of free electron evanescent fields in the optical frequency range
We introduce an optical fiber platform which can be used to interrogate proximity interactions between free-electron evanescent fields and photonic nanostructures at optical frequencies in a manner similar to that in which optical evanescent fields are sampled using nanoscale aperture probes in scanning near-field microscopy. Conically profiled optical fiber tips functionalized with nano-gratings are employed to couple electron evanescent fields to light via the Smith-Purcell effect. We demonstrate the interrogation of medium energy (30–50 keV) electron fields with a lateral resolution of a few micrometers via the generation and detection of visible/UV radiation in the 700–300 nm (free-space) wavelength range.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗