Abstract
The mechanisms determining the absorption line profiles of CO and S{cyrillic}O{cyrillic} 2 molecules enclosed in cells with sizes changing from a few tens of nanometers to a few centimeters are considered. Frequencies of molecular transitions from several reciprocal centimeters (rotational transitions) to 2000 cm -1 (rovibrational transitions) are considered. Doppler and intermolecular collisional broadening and line broadening as a result of collisions with walls of the cell filled with the gas are discussed. It is demonstrated that the contribution of line broadening as a result of collisions with cell walls to the total line width can change from several fractions to several tens of percent depending on the cell size. The temperature dependence of the contributions of line broadening and their dependence on the absorption wavelength are discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 657-663 |
| Number of pages | 7 |
| Journal | Russian Physics Journal |
| Volume | 55 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Nov 2012 |
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Keywords
- broadening
- CO
- collisions with walls
- S{cyrillic}O{cyrillic}
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Broadening of rovibrational absorption lines of carbon monoxide and dioxide molecules as a result of collisions with walls. / Lugina, N. É; Starikov, V. I.
In: Russian Physics Journal, Vol. 55, No. 6, 11.2012, p. 657-663.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Broadening of rovibrational absorption lines of carbon monoxide and dioxide molecules as a result of collisions with walls
AU - Lugina, N. É
AU - Starikov, V. I.
PY - 2012/11
Y1 - 2012/11
N2 - The mechanisms determining the absorption line profiles of CO and S{cyrillic}O{cyrillic} 2 molecules enclosed in cells with sizes changing from a few tens of nanometers to a few centimeters are considered. Frequencies of molecular transitions from several reciprocal centimeters (rotational transitions) to 2000 cm -1 (rovibrational transitions) are considered. Doppler and intermolecular collisional broadening and line broadening as a result of collisions with walls of the cell filled with the gas are discussed. It is demonstrated that the contribution of line broadening as a result of collisions with cell walls to the total line width can change from several fractions to several tens of percent depending on the cell size. The temperature dependence of the contributions of line broadening and their dependence on the absorption wavelength are discussed.
AB - The mechanisms determining the absorption line profiles of CO and S{cyrillic}O{cyrillic} 2 molecules enclosed in cells with sizes changing from a few tens of nanometers to a few centimeters are considered. Frequencies of molecular transitions from several reciprocal centimeters (rotational transitions) to 2000 cm -1 (rovibrational transitions) are considered. Doppler and intermolecular collisional broadening and line broadening as a result of collisions with walls of the cell filled with the gas are discussed. It is demonstrated that the contribution of line broadening as a result of collisions with cell walls to the total line width can change from several fractions to several tens of percent depending on the cell size. The temperature dependence of the contributions of line broadening and their dependence on the absorption wavelength are discussed.
KW - broadening
KW - CO
KW - collisions with walls
KW - S{cyrillic}O{cyrillic}
UR - http://www.scopus.com/inward/record.url?scp=84869497008&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84869497008&partnerID=8YFLogxK
U2 - 10.1007/s11182-012-9863-9
DO - 10.1007/s11182-012-9863-9
M3 - Article
VL - 55
SP - 657
EP - 663
JO - Russian Physics Journal
JF - Russian Physics Journal
SN - 1064-8887
IS - 6
ER -