Laser-induced thermoelectric effects in electrically biased nanoscale constrictions



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Mennemanteouil, Marie-Maxime and Colas-des-Francs, Gérard and Buret, Mickaël and Dasgupta, Arindam and Cuadrado, Alexander and Alda, Javier and Bouhelier, Alexandre (2018) Laser-induced thermoelectric effects in electrically biased nanoscale constrictions. Nanophotonics, 7 (12). pp. 1917-1927. ISSN 2192-8614

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Electrically biased metal nanostructures are at the core of innovative multifunctional integrated devices that control the flow of electrons and photons at the nanoscale. They are based on plasmonic structures that create strongly confined fields, typically associated with large temperature gradients. These thermal effects may generate artifact responses detrimental to the desired operation. We show here how a biasing polarity and a local optical excitation asymmetry of a generic geometry – a nanoscale constriction – interplay thermally to modify the diffusive electron transport in out-of-equilibrium conditions. Our experimental results are accompanied with computational electromagnetism and multiphysics simulations.

Item Type:Article
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En abierto en la web del editor.
Received: 2018-07-04; Revised: 2018-09-04; Accepted: 2018-09-24; Published Online: 2018-10-11

Uncontrolled Keywords:Plasmonics; nanostructure; Seebeck effect; thermoelectricity; electron transport
Subjects:Sciences > Physics > Materials
Sciences > Physics > Optics
Sciences > Physics > Thermodynamics
Medical sciences > Optics > Lasers
ID Code:50563
Deposited On:11 Jan 2019 09:34
Last Modified:11 Jan 2019 11:15

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