DC pole | Wartość | Język |
dc.contributor.author | Levchuk, A. | - |
dc.contributor.author | Wilk, Bartosz | - |
dc.contributor.author | Vaudel, G. | - |
dc.contributor.author | Labbé, F. | - |
dc.contributor.author | Arnaud, B. | - |
dc.contributor.author | Balin, Katarzyna | - |
dc.contributor.author | Szade, Jacek | - |
dc.contributor.author | Ruello, P. | - |
dc.contributor.author | Juvé, V. | - |
dc.date.accessioned | 2020-06-04T07:57:41Z | - |
dc.date.available | 2020-06-04T07:57:41Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Physical Review B, Vol. 101 (2020), Art. No. 180102 | pl_PL |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.issn | 2469-9969 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/14397 | - |
dc.description.abstract | We report the generation of coherent acoustic phonons in materials with terahertz ultrashort pulses. This
is demonstrated in metals and topological insulators by exciting an acoustic eigenmode in nanometric-sized
thin films. The efficiency of the coupling is quadratic in the terahertz electric field strength within the range
of investigation. Owing to a quantitative comparison between terahertz and near-infrared ultrashort pulse
excitations, we show that the process of acoustic phonon generation by terahertz radiation is mainly driven
by thermoelastic stress. While for the near-infrared light excitation the lattice temperature increase comes
from a rapid energy transfer from the hot carriers to the phonon bath during carrier intraband relaxation, the
thermoelastic stress induced by the terahertz electric field is linked to the scattering of the accelerated electrons
leading to an ultrafast Joule effect. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Coherent acoustic phonons | pl_PL |
dc.subject | nanofilms of metals | pl_PL |
dc.subject | ultrashort terahertz pulses | pl_PL |
dc.title | Coherent acoustic phonons generated by ultrashort terahertz pulses in nanofilms of metals and topological insulators | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.identifier.doi | 10.1103/PhysRevB.101.180102 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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