An ultrafast nanotip electron gun triggered by grating-coupled surface plasmons

Journal Article · Mon Dec 07 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4937121· OSTI ID:22486175

Schröder, Benjamin; Sivis, Murat; Bormann, Reiner; Schäfer, Sascha; Ropers, Claus ^[1]

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1. 4th Physical Institute - Solids and Nanostructures, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen (Germany)

We demonstrate multiphoton photoelectron emission from gold nanotips induced by nanofocusing surface plasmons, resonantly excited on the tip shaft by a grating coupler. The tip is integrated into an electron gun assembly, which facilitates control over the spatial emission sites and allows us to disentangle direct grating emission from plasmon-triggered apex emission. The nanoscale source size of this electron gun concept enables highly coherent electron pulses with applications in ultrafast electron imaging and diffraction.

• OSTI ID: 22486175
• Journal Information: Applied Physics Letters, Vol. 107, Issue 23; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONTROL
DIFFRACTION
ELECTRON GUNS
ELECTRONS
EMISSION
GOLD
GRATINGS
MULTI-PHOTON PROCESSES
NANOSTRUCTURES
PLASMONS
PULSES
SURFACES