Vibrational stimulated emission of 13CO2 in solid argon
| Autor: | H. Chabbi, L. Abouaf-Marguin, H. Dubost, Pierre-Richard Dahoo, B. Gauthier-Roy, M. Broquier, A.-M. Vasserot, J. M. Berset, J.M. Ortega, R. Kolos, A. Tramer |
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| Rok vydání: | 1998 |
| Předmět: |
Range (particle radiation)
Argon 010304 chemical physics General Physics and Astronomy chemistry.chemical_element 02 engineering and technology 021001 nanoscience & nanotechnology Laser 01 natural sciences law.invention chemistry law 0103 physical sciences Stimulated emission Physical and Theoretical Chemistry Atomic physics 0210 nano-technology Excitation |
| Zdroj: | Chemical Physics Letters. 285:252-258 |
| ISSN: | 0009-2614 |
| DOI: | 10.1016/s0009-2614(98)00034-7 |
| Popis: | Laser excitation of the ν 3 ( v =1) level of 13 CO 2 in solid argon is found to induce strong ( ν 1 + ν 2 , 3 ν 2 )→( ν 1 , 2 ν 2 ) and ( ν 1 , 2 ν 2 → ν 2 ) emissions in the 16 μm spectral region. Their sharp threshold in function of the laser excitation density is interpreted as the signature of vibrational stimulated emission (VSE). Upon site-selective excitation, the VSE exhibits marked differences in threshold, temporal behaviour and relative intensities. Its time dependence gives some insight into the vibrational dynamics of matrix-isolated CO 2 . In particular, it suggests for the upper levels of VSE transitions a rather long vibrational lifetime in the μs range. |
| Databáze: | OpenAIRE |
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