Results 21 to 30 of about 63,375 (259)
Experimental demonstration and visual observation of dust trapping in an electron storage ring
Physical Review Special Topics. Accelerators and Beams, 2009 Sudden decreases in the beam lifetime, which are attributed to the dust trappings, sometimes occur at the electron storage ring Photon Factory Advanced Ring (PF-AR).
Yasunori Tanimoto +2 more
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Localized direct material removal and deposition by nanoscale field emission scanning probes
Micro and Nano Engineering, 2022 The manufactory of advanced micro- and nanoscale devices relies on capable patterning strategies. Focused electron beams, as for instance implemented since long in electron beam lithography and electron beam induced deposition, are in this regard key ...
Martin Hofmann +3 more
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AIP Advances, 2022 We report a new device design of a graphene field-effect transistor (G-FET) for capacitive sensing application. A channel area exposed to ambient conditions in G-FET is known to be a promising candidate for molecular level sensing applications because ...
Wonbin Ju, Sungbae Lee
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Improved and simplified design of the relativistic helitron resonator
Доклады Белорусского государственного университета информатики и радиоэлектроники, 2020 One of the main trends in microwave electronics is the ultra-large power production. The electron stream energy is converted inside vacuum systems, where the key moment is increasing output power of microwave devices, which is possible only when using ...
A. A. Kurayev, V. V. Matveyenka
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Optimizing the e-beam profile of a single carbon nanotube field emission device for electric propulsion systems [PDF]
Journal of Aerospace Technology and Management, 2010 Preliminary studies on field emission (FE) arrays comprised of carbon nanotubes (CNT) as an electron source for electric propulsion system show remarkably promising results. Design parameters for a carbon nanotube (CNT) field-emission device operating on
Juliano Fujioka Mologni +5 more
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Advanced Photonics Research, 2022 Exploring novel nanotechnology schemes for tunable broadband vacuum photodetection devices is of great significance. Herein, a strategy to combine a field‐emission cold cathode with plasmonic nanostructures to form a plasmon‐enhanced field‐emission ...
Yan Shen +4 more
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Ultrafast High-Voltage Kicker System for Ion-Clearing Gaps
Photonics, 2021 Ionization scattering of electron beams with residual gas molecules causes ion trapping in electron rings, both in a collider and electron cooling system.
Alexander Yu. Smirnov +10 more
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Advanced Engineering Materials, EarlyView.Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
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Metals, 2021 The different size of plasmonic gold nanorods (NRs) were synthesized by the overgrown seeds method and applied to vacuum-free hybrid solar cells (VFHSCs).
Minsu Kim +6 more
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Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology
Advanced Engineering Materials, EarlyView.We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham +7 more
wiley +1 more source