Nanostructured Ultrafast Silicon-Tip Optical Field-Emitter Arrays

Femtosecond ultrabright electron sources with spatially structured emission are an enabling technology for free-electron lasers, compact coherent X-ray sources, electron diffractive imaging, and attosecond science. In this work, we report the design, modeling, fabrication, and experimental character...

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Bibliographic Details
Published in:Nano letters 2014-09, Vol.14 (9), p.5035-5043
Main Authors: Swanwick, Michael E, Keathley, Phillip D, Fallahi, Arya, Krogen, Peter R, Laurent, Guillaume, Moses, Jeffrey, Kärtner, Franz X, Velásquez-García, Luis F
Format: Article
Language:English
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Summary:Femtosecond ultrabright electron sources with spatially structured emission are an enabling technology for free-electron lasers, compact coherent X-ray sources, electron diffractive imaging, and attosecond science. In this work, we report the design, modeling, fabrication, and experimental characterization of a novel ultrafast optical field emission cathode comprised of a large (>100 000 tips), dense (4.6 million tips·cm–2), and highly uniform (
ISSN:1530-6984
1530-6992
DOI:10.1021/nl501589j