Line-mixing between rotational Stark components of CH(3)F self-perturbed and perturbed by helium: Experimental results and IOS analysis

Kód výsledku v IS VaVaI

RIV/60461373:22340/11:43891411 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1016/j.jms.2011.01.006

DOI - Digital Object Identifier

10.1016/j.jms.2011.01.006

Jazyk výsledku

angličtina

Název v původním jazyce

Line-mixing between rotational Stark components of CH(3)F self-perturbed and perturbed by helium: Experimental results and IOS analysis

Popis výsledku v původním jazyce

Self- and He-broadening coefficients of microwave transitions of CH(3)F have been measured with and without thepresence of an external electric field. This provides values for the J, K -} J + 1, K (K = 0 - J) transitions for J = 1 and J = 3 as well as for the various J, K, M -} J + 1, K, M' (vertical bar M vertical bar = 0 - K, vertical bar M - M'vertical bar = 0, 1) Stark components. The results and those of a previous experimental study for pure CH(3)F, which show significant line-mixing effects, areanalyzed with a model based on the Infinite Order Sudden approximation. It is shown that the latter leads to very satisfactory modeling of observed values even though no parameter was adjusted since previously and independently determined basic cross-sections are used. The quality of the present predictions is comparable with that obtained previously with a semi-classical approach.

Název v anglickém jazyce

Line-mixing between rotational Stark components of CH(3)F self-perturbed and perturbed by helium: Experimental results and IOS analysis

Popis výsledku anglicky

Self- and He-broadening coefficients of microwave transitions of CH(3)F have been measured with and without thepresence of an external electric field. This provides values for the J, K -} J + 1, K (K = 0 - J) transitions for J = 1 and J = 3 as well as for the various J, K, M -} J + 1, K, M' (vertical bar M vertical bar = 0 - K, vertical bar M - M'vertical bar = 0, 1) Stark components. The results and those of a previous experimental study for pure CH(3)F, which show significant line-mixing effects, areanalyzed with a model based on the Infinite Order Sudden approximation. It is shown that the latter leads to very satisfactory modeling of observed values even though no parameter was adjusted since previously and independently determined basic cross-sections are used. The quality of the present predictions is comparable with that obtained previously with a semi-classical approach.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

LC06071: Centrum pro kvazioptické systémy a terahertzovou spektroskopii

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

Journal of Molecular Spectroscopy

ISSN

0022-2852

e-ISSN

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Svazek periodika

266

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

12-20

Kód UT WoS článku

000289588300002

EID výsledku v databázi Scopus

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