Unidirectional currents in asymmetric nanojunctions and electronic wavepacket interference

authored by

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.

Organisation(s)

Institute of Quantum Optics
PhoenixD: Photonics, Optics, and Engineering - Innovation Across Disciplines

External Organisation(s)

Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy im Forschungsbund Berlin e.V. (MBI)
Westlake University
Carl von Ossietzky University of Oldenburg

Type

Conference contribution

Publication date

2021

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics

Electronic version(s)

https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542625 (Access: Closed)