Time-resolved CARS measurements of vibrational decoherence of I₂ isolated in matrix Ar
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Time-resolved CARS measurements of vibrational decoherence of I₂ isolated in matrix Ar
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| Creator |
Karavitis, M.
Segale, D. Bihary, Z. Pettersson, M. Apkarian, V.A. |
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| Subject |
Spectroscopy in Cryocrystals and Matrices
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| Description |
Time-resolved coherent anti-Stokes Raman scattering is applied to prepare and interrogate vibrational coherences on the ground electronic surface of molecular iodine isolated in Ar matrices. The coherence decay time shows a linear dependence on vibrational quantum numbers, for v = 3–15. The temperature dependence of decoherence rates is negligible for v < 7, in the experimental range T = 18–32 K. For a v = 13, 14 superposition, the temperature dependence indicates dephasing by a 66 cm–¹ pseudo-local phonon, just outside the Debye edge of the solid. The accuracy of the data is limited due to two-photon induced dissociation of the molecule, which process is characterized using polarized fields. The T → 0 limit of dephasing is discussed.
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| Date |
2018-01-14T13:10:43Z
2018-01-14T13:10:43Z 2003 |
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| Type |
Article
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| Identifier |
Time-resolved CARS measurements of vibrational decoherence of I₂ isolated in matrix Ar / M. Karavitis, D. Segale, Z. Bihary, M. Pettersson, V.A. Apkarian // Физика низких температур. — 2003. — Т. 29, № 9-10. — С. 1071-1080. — Бібліогр.: 26 назв. — англ.
0132-6414 PACS: 42.65.Dr, 67.80.-s http://dspace.nbuv.gov.ua/handle/123456789/128933 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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