Laser-Driven Electron Lensing in Silicon Microstructures

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 μm wavelength, nJ-class laser pulses from an optical parametric amplifier. The optical near field of the pillar structure...

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Veröffentlicht in:	Physical review letters 2019-03, Vol.122 (10), p.104801-104801, Article 104801
Hauptverfasser:	Black, Dylan S, Leedle, Kenneth J, Miao, Yu, Niedermayer, Uwe, Byer, Robert L, Solgaard, Olav
Format:	Artikel
Sprache:	eng
Schlagworte:	Field strength Lasers Lenses Parametric amplifiers Quadrupoles Silicon Tunable lasers
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container_end_page	104801
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container_title	Physical review letters
container_volume	122
creator	Black, Dylan S Leedle, Kenneth J Miao, Yu Niedermayer, Uwe Byer, Robert L Solgaard, Olav
description	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 μm 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±10 MV/m incident laser fields, the lens focal length is measured to be 50±4 μm, which corresponds to an equivalent quadrupole focusing gradient B^{'} of 1.4±0.1 MT/m. By varying the incident laser field strength, the lens can be tuned from a 21±2 μm focal length (B^{'}>3.3 MT/m) to focal lengths on the centimeter scale.
doi_str_mv	10.1103/PhysRevLett.122.104801
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source	American Physical Society Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals
subjects	Field strength Lasers Lenses Parametric amplifiers Quadrupoles Silicon Tunable lasers
title	Laser-Driven Electron Lensing in Silicon Microstructures
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