Strong-field photoemission from silicon field emitter arrays
نویسندگان
چکیده
منابع مشابه
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 characterization of a novel ultrafast optical field emission cathode comprised of a large (>100,000 tips),...
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Nonlinear photoelectron emission from metallic nanotips is explored in the strong-field regime. The passage between the multiphoton and the optical field emission regimes is clearly identified. The experimental observations are in agreement with a quantum mechanical strong-field model.
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We performed studies of electron emission from ultrananocrystalline diamond ~UNCD!-coated, ungated silicon field emitters as a function of in situ exposure to various gases during current versus voltage and current versus time measurements. The emitter arrays were fabricated by a subtractive tip fabrication process and coated with UNCD films using microwave plasma chemical vapor deposition with...
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Field emitter arrays (FEAs) are a promising class of cold electron sources with applications in RF amplifiers, terahertz sources, lithography, imaging, and displays. FEAs are yet to achieve widely implemented because of serious challenges which have limited their viability in systems that require advanced electron sources. We identified four major challenges that posed significant barriers to t...
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ژورنال
عنوان ژورنال: Annalen der Physik
سال: 2012
ISSN: 0003-3804
DOI: 10.1002/andp.201200189