Zewail, A. H. and Orlowski, T. E. and Shah, R. R. and Jones, K. E. (1977) High-resolution time resolved spectroscopy of collisionless molecular beams: optical T_1 and T_2. Chemical Physics Letters, 49 (3). pp. 520-525. ISSN 0009-2614. doi:10.1016/0009-2614(77)87029-2. https://resolver.caltech.edu/CaltechAUTHORS:20160927-112618970
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Abstract
We report on the observation of the coherent and incoherent transients of collisionless molecular beams using single-mode laser spectroscopy. The technique offers a resolution of one part in 10^8, and resolves the spectra on the time scale of nanoseconds. The methods is demonstrated on an effusive beam of iodine. Since the beam is collisionless the optical dephasing of the selectively excited (10^(−4) cm^(−1)) molecular packet can be directly related to the zero-pressure optical T_1 obtained from the Stern-Volmer relationship of iodine gas in a bulb. Finally, the cross section for the radiationless and radiative deactivation are reported and related to the free-induction decay (FID) of the coherently excited molecular beam.
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| Additional Information: | © 1977 Elsevier B.V. Received 25 January 1977. Revised manuscript received 14 April 1977. This work was supported in part by the Research Corporation and in part by the Energy Research and Development Administration. We would like to thank the referee for the careful reading of the manuscript and for the constructive comments. | |||||||||
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| Issue or Number: | 3 | |||||||||
| DOI: | 10.1016/0009-2614(77)87029-2 | |||||||||
| Record Number: | CaltechAUTHORS:20160927-112618970 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20160927-112618970 | |||||||||
| Official Citation: | A.H. Zewail, T.E. Orlowski, R.R. Shah, K.E. Jones, High-resolution time resolved spectroscopy of collisionless molecular beams: optical T1 and T2, Chemical Physics Letters, Volume 49, Issue 3, 1 August 1977, Pages 520-525, ISSN 0009-2614, http://dx.doi.org/10.1016/0009-2614(77)87029-2. (http://www.sciencedirect.com/science/article/pii/0009261477870292) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 70608 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 28 Sep 2016 22:58 | |||||||||
| Last Modified: | 11 Nov 2021 04:32 |
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