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The absorption of pulsed CO2-laser radiation by ethylene at total pressures from 25 to 3000 Torr
- Source :
- Applied Physics B Photophysics and Laser Chemistry. 49:307-313
- Publication Year :
- 1989
- Publisher :
- Springer Science and Business Media LLC, 1989.
-
Abstract
- The absorption of pulsed CO2-laser radiation by ethylene has been measured at total pressures from 25 to 3000 Torr, using the P(12) and P(14) lines in the 10.6 μm band, with incident fluences from 0.1 to 0.7 J/cm2. Marked deviations from the Beer-Lambert absorption law were observed, with the effective absorption coefficient varying with pressure, fluence, absorption path-length and the addition of non-absorbing gas. Pressure broadening of the rotational lines of the ethylene absorption spectrum was shown to be the major cause of these deviations, together with lesser effects which can be attributed to the rise in temperature of the absorbing gas during the laser pulse.
- Subjects :
- Materials science
Ethylene
Physics and Astronomy (miscellaneous)
Absorption spectroscopy
business.industry
General Engineering
Analytical chemistry
General Physics and Astronomy
Radiation
Laser
Fluence
law.invention
chemistry.chemical_compound
Optics
chemistry
law
Attenuation coefficient
Torr
Absorption (electromagnetic radiation)
business
Subjects
Details
- ISSN :
- 14320649 and 07217269
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Applied Physics B Photophysics and Laser Chemistry
- Accession number :
- edsair.doi...........0ea55d9f9caa23bd193722e3b7df8a2b