Observation of ultrafast impact ionization in diamond driven by mid-infrared femtosecond pulses
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10421437" target="_blank" >RIV/00216208:11320/20:10421437 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=W99r1asurz" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=W99r1asurz</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/5.0001983" target="_blank" >10.1063/5.0001983</a>
Alternative languages
Result language
angličtina
Original language name
Observation of ultrafast impact ionization in diamond driven by mid-infrared femtosecond pulses
Original language description
We report on the observation of ultrafast impact ionization in monocrystalline diamond driven by high-intensity mid-infrared femtosecond laser pulses. The measurements are based on monitoring the excited carrier population during and after the interaction of the pre-excited sample with a strong infrared pulse by transient transmission spectroscopy and photoluminescence measurements. A twofold increase in the initial carrier population due to impact ionization is observed with the peak infrared intensity of 2.5TW/cm(2). The experimental results are supported by numerical simulations of electron dynamics using time-dependent density functional theory, which show that the electrons in the conduction band reach the energy threshold for impact ionization during the interaction with the infrared pulse.
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
<a href="/en/project/GJ18-10486Y" target="_blank" >GJ18-10486Y: Ultrafast processes in solids controlled by few-cycle laser pulses</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Applied Physics
ISSN
0021-8979
e-ISSN
—
Volume of the periodical
128
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
015701
UT code for WoS article
000551880800001
EID of the result in the Scopus database
2-s2.0-85087638085