Reference : Active control of ultrafast electron dynamics in plasmonic gaps using an applied bias
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Physics
Physics and Materials Science
http://hdl.handle.net/10993/46940
Active control of ultrafast electron dynamics in plasmonic gaps using an applied bias
English
Ludwig, Markus mailto [Department of Physics and Center for Applied Photonics, University of Konstanz, D-78457 Konstanz, Germany]
K. Kazansky, Andrey [Donostia International Physics Center DIPC, Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain > > > ; IKERBASQUE, Basque Foundation for Science, 48013 Bilbao, Spain]
Aguirregabiria, Garikoitz [Material Physics Center CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain]
Codruta Marinica, Dana [Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France]
Falk, Matthias [Department of Physics and Center for Applied Photonics, University of Konstanz, D-78457 Konstanz, Germany]
Leitenstorfer, Alfred [Department of Physics and Center for Applied Photonics, University of Konstanz, D-78457 Konstanz, Germany]
Brida, Daniele mailto [University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Physics and Materials Science (DPHYMS) > ; Department of Physics and Center for Applied Photonics, University of Konstanz, D-78457 Konstanz, Germany]
Aizpurua, Javier [Donostia International Physics Center DIPC, Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain > > > ; Material Physics Center CSIC-UPV/EHU, Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastián, Spain]
G. Borisov, Andrei [Université Paris-Saclay, CNRS, Institut des Sciences Moléculaires d’Orsay, 91405 Orsay, France]
24-Jun-2020
Physical Review. B, Condensed Matter
American Physical Society
Yes (verified by ORBilu)
0163-1829
1095-3795
New York
MD
[en] In this joint experimental and theoretical study we demonstrate coherent control of the optical field emission
and electron transport in plasmonic gaps subjected to intense single-cycle laser pulses. Our results show that an
external THz field or a minor dc bias, orders of magnitude smaller than the optical bias owing to the laser field,
allows one to modulate and direct the electron photocurrents in the gap of a connected nanoantenna operating as
an ultrafast nanoscale vacuum diode for lightwave electronics. Using time-dependent density functional theory
calculations we elucidate the main physical mechanisms behind the observed effects and show that an applied
dc field significantly modifies the optical field emission and quiver motion of photoemitted electrons within the
gap. The quantum many-body theory reproduces the measured net electron transport in the experimental device,
which allows us to establish a paradigm for controlling nanocircuits at petahertz frequencies
http://hdl.handle.net/10993/46940
10.1103/PhysRevB.101.241412

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