Effect of Auger recombination on transient optical properties in XUV and soft X-ray irradiated silicon nitride
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00582247" target="_blank" >RIV/61389021:_____/21:00582247 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/21:00545328
Result on the web
<a href="https://www.nature.com/articles/s41598-021-84677-w" target="_blank" >https://www.nature.com/articles/s41598-021-84677-w</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-021-84677-w" target="_blank" >10.1038/s41598-021-84677-w</a>
Alternative languages
Result language
angličtina
Original language name
Effect of Auger recombination on transient optical properties in XUV and soft X-ray irradiated silicon nitride
Original language description
Spatially encoded measurements of transient optical transmissivity became a standard tool for temporal diagnostics of free-electron-laser (FEL) pulses, as well as for the arrival time measurements in X-ray pump and optical probe experiments. The modern experimental techniques can measure changes in optical coefficients with a temporal resolution better than 10 fs. This, in an ideal case, would imply a similar resolution for the temporal pulse properties and the arrival time jitter between the FEL and optical laser pulses. However, carrier transport within the material and out of its surface, as well as carrier recombination may, in addition, significantly decrease the number of carriers. This would strongly affect the transient optical properties, making the diagnostic measurement inaccurate. Below we analyze in detail the effects of those processes on the optical properties of XUV and soft X-ray irradiated Si3N4, on sub-picosecond timescales. Si3N4 is a wide-gap insulating material widely used for FEL pulse diagnostics. Theoretical predictions are compared with the published results of two experiments at FERMI and LCLS facilities, and with our own recent measurement. The comparison indicates that three body Auger recombination strongly affects the optical response of Si3N4 after its collisional ionization stops. By deconvolving the contribution of Auger recombination, in future applications one could regain a high temporal resolution for the reconstruction of the FEL pulse properties measured with a Si3N4-based diagnostics tool.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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
Scientific Reports
ISSN
2045-2322
e-ISSN
2045-2322
Volume of the periodical
11
Issue of the periodical within the volume
1
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
5203
UT code for WoS article
000626140000031
EID of the result in the Scopus database
2-s2.0-85102084539