Photon-assisted ultrafast electron-hole plasma expansion in direct band semiconductors
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10491662" target="_blank" >RIV/00216208:11320/24:10491662 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/24:00585720
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=p1E0EZM2Ct" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=p1E0EZM2Ct</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1515/nanoph-2023-0815" target="_blank" >10.1515/nanoph-2023-0815</a>
Alternative languages
Result language
angličtina
Original language name
Photon-assisted ultrafast electron-hole plasma expansion in direct band semiconductors
Original language description
Time-resolved terahertz spectroscopy is used to investigate formation and ultrafast long-distance propagation of electron-hole plasma in strongly photoexcited GaAs and InP. The observed phenomena involve fundamental interactions of electron-hole system with light, which manifest themselves in two different regimes: a coherent one with the plasma propagation speeds up to c/10 (in GaAs at 20 K) and an incoherent one reaching up to c/25 (in InP at 20 K), both over a macroscopic distance >100 mu m. We explore a broad range of experimental conditions by investigating the two materials, by tuning their band gap with temperature and by controlling the interaction strength with the optical pump fluence. Our interpretation suggests that the observed phenomena should occur in most direct band semiconductors upon strong photoexcitation with low excess energy.
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
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Nanophotonics
ISSN
2192-8606
e-ISSN
2192-8614
Volume of the periodical
13
Issue of the periodical within the volume
10
Country of publishing house
DE - GERMANY
Number of pages
13
Pages from-to
1859-1871
UT code for WoS article
001191870800001
EID of the result in the Scopus database
2-s2.0-85189180408