Absorption of CO2 laser pulses at different wavelengths by ground-state and vibrationally heated SF6 |
| |
Authors: | H. Stafast W.E. Schmid K.L. Kompa |
| |
Affiliation: | Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., Projektgruppe für Laserforschung, D-8046 Garching, Fed. Rep. Germany |
| |
Abstract: | The absorption of CO2 laser pulses by low pressure SF6 gas has been investigated over a wide range of energy fluxes. For laser energy fluxes of 0.01–1 J cm-2 the effective absorption cross section varies between 0.2 and 2 × 10-18 cm2. For each laser line an individual dependence on the energy is found and in some cases minor changes in the absorption behaviour seem to occur around 0.1 J cm-2. SF6 excited with an average vibrational energy content of up to 20 photons/molecule does not absorb measurable amounts of 9.4 μm laser light. The influence of various SF6 and Ar pressures on the temporal shape of the transmitted pulses has been investigated. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |