Modified quantum defect theory: application to analysis of high-resolution Fourier transform spectra of neutral oxygen

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F24%3A00585657" target="_blank" >RIV/61388955:_____/24:00585657 - isvavai.cz</a>

Výsledek na webu

<a href="https://link.springer.com/article/10.1140/epjd/s10053-024-00837-3" target="_blank" >https://link.springer.com/article/10.1140/epjd/s10053-024-00837-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1140/epjd/s10053-024-00837-3" target="_blank" >10.1140/epjd/s10053-024-00837-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modified quantum defect theory: application to analysis of high-resolution Fourier transform spectra of neutral oxygen

Popis výsledku v původním jazyce

The quantum defect theory (QDT) has been successfully used to describe processes involving high-excited (Rydberg) states of atoms and molecules with a single valence electron over closed shells. This study proposes a modification of QDT to describe the low-energy excited states of a more complex atom (oxygen) which are responsible for its infrared (IR) spectrum. The radial wavefunctions of low-excited electron states include the quantum defect dependence on energy which is derived from the whole spectral series, in contrast to the highly excited Rydberg levels, whose quantum defects are determined by the individual level energies. Our method was applied to calculate the transition probabilities in the neutral oxygen spectra in discharge plasma measured using high-resolution time-resolved IR Fourier transform spectroscopy. The Boltzmann plots resulting from the experimental spectra prove that the modified QDT approach is an adequate method for calculating atomic dipole transition moments.

Název v anglickém jazyce

Modified quantum defect theory: application to analysis of high-resolution Fourier transform spectra of neutral oxygen

Popis výsledku anglicky

The quantum defect theory (QDT) has been successfully used to describe processes involving high-excited (Rydberg) states of atoms and molecules with a single valence electron over closed shells. This study proposes a modification of QDT to describe the low-energy excited states of a more complex atom (oxygen) which are responsible for its infrared (IR) spectrum. The radial wavefunctions of low-excited electron states include the quantum defect dependence on energy which is derived from the whole spectral series, in contrast to the highly excited Rydberg levels, whose quantum defects are determined by the individual level energies. Our method was applied to calculate the transition probabilities in the neutral oxygen spectra in discharge plasma measured using high-resolution time-resolved IR Fourier transform spectroscopy. The Boltzmann plots resulting from the experimental spectra prove that the modified QDT approach is an adequate method for calculating atomic dipole transition moments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

European Physical Journal D

ISSN

1434-6060

e-ISSN

1434-6079

Svazek periodika

78

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

7

Strana od-do

46

Kód UT WoS článku

001204814400001

EID výsledku v databázi Scopus

2-s2.0-85190592106