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A detailed comparison of ultrafast electron emission from structured, silicon nano-tips driven by 800 nm and 2.1 μm pulses was performed. In the low energy portion of the spectrum, a saturation of the direct electron energy bandwidth to ≍1.6 eV for 800 nm and ≍ 1 eV for 2.1 μm was observed.
A simulation package for 3D pulse propagation and HHG is reported. Our package is capable of emulating pulse propagation for a host of geometries and nonlinear effects, and has been employed to reproduce experimental HHG spectra.
Strong‐field photoemission from silicon field emitter arrays is investigated experimentally and results are explained using a “simple‐man” optical‐field emission model. Spectra are collected throughout an in‐situ laser annealing process, leading to a red‐shift in emitted electron energy along with an increase in electron yield. After the annealing process, a high energy plateau is formed which is...
A marked increase in electron yield, an overall spectral red shift, and the formation of a higher energy peak from Si field emitter arrays (FEAs) are observed in photo-electron spectra throughout a laser annealing process.
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