Multiphoton absorption of broad-band CO2 laser radiation by SF6 |
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Authors: | S S Alimpiev W Fuß K L Kompa C Schwab Wan Chong-yi |
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Institution: | (1) Max-Planck-Institut für Quantenoptik, D-8046 Garching bei München, Fed. Rep. Germany;(2) Present address: Institute of General Physics, ul. Vavilova 38, SU-117942 Moscow, USSR;(3) Present address: Institute of Electronics, Academia Sinica, Beijing, China |
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Abstract: | Increase of the emission bandwidth of a high-pressure CO2 laser up to 1.5 cm–1 increases the multiphoton absorption cross-section of SF6. Comparison with the previously found 9] increased absorption for shorter pulses suggests that this is also a bandwidth effect. Spectral structures as narrow as 1 cm–1 above the 10th absorption step are invoked to explain the observations. The temperature effect, which disappears in the broad-band case, confirms this view. |
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Keywords: | 82 50 33 35 |
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