Unidirectional currents in asymmetric nanojunctions and electronic wavepacket interference

verfasst von

Ihar Babushkin, Liping Shi, Anton Husakou, Oliver Melchert, Ayhan Demircan, Christoph Lienau, Misha Ivanov, Uwe Morgner, Milutin Kovacev

Abstract

In recent few years, ultrafast electron emission from gold dimer nanoantennas (nanojunctions) with gap sizes down to few nanometers has attracted great interest for on-chip electronics, promising petahertz signal processing bandwidth [2] , [3]. When embedding such a nanojunction into a closed circuit, unidirectional currents bursts which vary on the sub-cycle scale, may arise [2] - [5]. Such currents can be created in symmetric structures driven by few- cycle pulses affected by carrier envelope phase (CEP) control [2] , [3] , or alternatively, in asymmetric nanostructures [4] , [5] (see Fig. 1a, b ). In the last case, CEP control is not needed.

Organisationseinheit(en)

Institut für Quantenoptik
PhoenixD: Simulation, Fabrikation und Anwendung optischer Systeme

Externe Organisation(en)

Max-Born-Institut für Nichtlineare Optik und Kurzzeitspektroskopie (MBI)
Westlake University
Carl von Ossietzky Universität Oldenburg

Typ

Aufsatz in Konferenzband

Publikationsdatum

2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Elektronische, optische und magnetische Materialien, Atom- und Molekularphysik sowie Optik

Elektronische Version(en)

https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542625 (Zugang: Geschlossen)