Ultrafast plasmon thermalization in epitaxial graphene probed by time-resolved THz spectroscopy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F21%3A00551642" target="_blank" >RIV/68378271:_____/21:00551642 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/21:10437386
Result on the web
<a href="https://doi.org/10.1002/adfm.202105763" target="_blank" >https://doi.org/10.1002/adfm.202105763</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/adfm.202105763" target="_blank" >10.1002/adfm.202105763</a>
Alternative languages
Result language
angličtina
Original language name
Ultrafast plasmon thermalization in epitaxial graphene probed by time-resolved THz spectroscopy
Original language description
The control of carrier transport by electrical, chemical, or optical Fermi level tuning is central to graphene electronics. Here, an optical pump-terahertz (THz) probe spectroscopy is applied to investigate ultrafast sheet conductivity dynamics in various epitaxially grown graphene layers representing a large variety of carbon allotropes, including H2 intercalated films. The graphene layers display a prominent plasmonic response connected with induced THz transparency spectra on ultrashort timescale. It is shown that the plasmonic confinement potentials act within micrometer-sized domains with essentially isotropic character. The measured ultrafast dynamics are entirely controlled by the quasi-Fermi level of laser-excited carriers through their temperature. The photocarriers undergo a disorder-enabled super-collision cooling process with an initial picosecond transfer of the optically deposited heat to the lattice followed by a sub-nanosecond relaxation governed by the lattice cooling.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Functional Materials
ISSN
1616-301X
e-ISSN
1616-3028
Volume of the periodical
31
Issue of the periodical within the volume
45
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
2105763
UT code for WoS article
000682388400001
EID of the result in the Scopus database
2-s2.0-85112650617