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 ![]() | |
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 ![]() | |
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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