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26 April 2024 |
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Article overview
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Laser-Driven Electron Lensing in Silicon Microstructures | | Dylan S. Black
; Kenneth J. Leedle
; Yu Miao
; Uwe Niedermayer
; Robert L. Byer
; Olav Solgaard
; | | Date: |
1 Feb 2019 | | Abstract: | We demonstrate a laser-driven, tunable electron lens fabricated in monolithic
silicon. The lens consists of an array of silicon pillars pumped symmetrically
by two 300 fs, 1.95 $mu$m wavelength, nJ-class laser pulses from an optical
parametric amplifier. The optical near-field of the pillar structure focuses
electrons in the plane perpendicular to the pillar axes. With 100 $pm$ 10 MV/m
incident laser fields, the lens focal length is measured to be 50 $pm$ 4
$mu$m, which corresponds to an equivalent quadrupole focusing gradient $B’$ of
1.4 $pm$ 0.1 MT/m. By varying the incident laser field strength, the lens can
be tuned from a 21 $pm$ 2 $mu$m focal length ($B’>3.3$ MT/m) to focal lengths
on the cm-scale. | | Source: | arXiv, 1902.0170 | | Services: | Forum | Review | PDF | Favorites | |
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