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Collisional broadening and shifting of saturated absorption resonances in silicon tetrafluoride
- Source :
- Optics and Spectroscopy. 108:523-527
- Publication Year :
- 2010
- Publisher :
- Pleiades Publishing Ltd, 2010.
-
Abstract
- The broadening and shifting of 12 saturated absorption resonances of the SiF4 gas induced by molecular collisions have been measured in the lasing region of a low-frequency CO2 laser at the P(30) line of the 9.4-μm band. Values of the collisional broadening are identical accurate to the measurement uncertainty. The collisional shift does not exceed 10% of the collisional broadening. This means that collisions with changes in the internal energy of molecules prevail over dephasing collisions.
- Subjects :
- Materials science
Internal energy
Dephasing
Saturated absorption spectroscopy
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
chemistry.chemical_compound
chemistry
Silicon tetrafluoride
Astrophysics::Earth and Planetary Astrophysics
Atomic physics
Homogeneous broadening
Absorption (electromagnetic radiation)
Lasing threshold
Doppler broadening
Subjects
Details
- ISSN :
- 15626911 and 0030400X
- Volume :
- 108
- Database :
- OpenAIRE
- Journal :
- Optics and Spectroscopy
- Accession number :
- edsair.doi...........1cb2776465fcba14203ece60afd5030f