Analysis of RABITT time delays using the stationary multiphoton molecular R-matrix approach
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F22%3A10456305" target="_blank" >RIV/00216208:11320/22:10456305 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ustsG3kX7z" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ustsG3kX7z</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevA.105.053101" target="_blank" >10.1103/PhysRevA.105.053101</a>
Alternative languages
Result language
angličtina
Original language name
Analysis of RABITT time delays using the stationary multiphoton molecular R-matrix approach
Original language description
We employ the recently developed multiphoton R-matrix method for molecular above-threshold photoionization to obtain second-order ionization amplitudes that govern the interference in RABITT experiments. This allows us to extract RABITT time delays that are in better agreement with nonperturbative time-dependent simulations of this process than the typically used combination of first-order (Wigner) delays and asymptotic corrections. We calculate molecular-frame as well as orientation-averaged RABITT delays for H-2, N-2, CO2, H2O, and N2O and analyze the origin of various structures in the time delays including the effects of partial-wave interference, shape resonances, and orientation averaging. Time delays for B and C states of CO2+ are strongly affected by absorption of the second (IR) photon in the ion. This effect corresponds to an additional contribution tau(coupl) to the asymptotic approximation for the RABITT delays tau approximate to tau(mol) + tau(c) + tau(coupl). Applicability of the asymptotic theory depends on the target and IR photon energy but typically starts at approximately 30-35 eV of XUV photon energy.
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
—
OECD FORD branch
10300 - Physical sciences
Result continuities
Project
<a href="/en/project/GJ20-15548Y" target="_blank" >GJ20-15548Y: New mechanisms of damage of DNA driven by electrons and ultraviolet light.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review A
ISSN
2469-9926
e-ISSN
2469-9934
Volume of the periodical
105
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
19
Pages from-to
053101
UT code for WoS article
000800291300006
EID of the result in the Scopus database
2-s2.0-85130526691