Electronic spectroscopy, stimulated emission and persistent spectral hole-burning of cryogenic nitrogen matrices doped with tetrabenzoporphin
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Electronic spectroscopy, stimulated emission and persistent spectral hole-burning of cryogenic nitrogen matrices doped with tetrabenzoporphin
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| Creator |
Arabei, S.M.
Galaup, J.-P. McCaffrey, J.G. Shafizadeh, N. Crépin, C. |
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| Subject |
Low Temperature Spectroscopy and Radiation Effects
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| Description |
This paper deal with our on-going work on the electronic spectroscopy of tetrapyrrole molecules embedded in cryogenic hosts. Under nanosecond laser excitation of the free-base tetrabenzoporphin molecules in a nitrogen matrix at 8 K, increasing the laser pulse energy results in essential enhancement of the intensity of one or several vibronic emission lines to take place in the fine-structure fluorescence spectrum. The observed intense monochromatic radiation possesses characteristics of stimulated radiation being realized as a result of a transition from the purely electronic S₁ level to a vibrational sublevel of the S₀ state, corresponding to excitation of stretching C–C vibrations of the tetrapyrrole methane bridges. We also report on persistent spectral hole-burning effects. The analysis of the holes and antiholes formation gives some insight on the photochemical properties of tetrabenzoporphin in a nitrogen matrix. |
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| Date |
2017-05-23T14:51:43Z
2017-05-23T14:51:43Z 2012 |
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| Type |
Article
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| Identifier |
Electronic spectroscopy, stimulated emission and
persistent spectral hole-burning of cryogenic nitrogen
matrices doped with tetrabenzoporphin / S.M. Arabei, J.-P. Galaup, J.G. McCaffrey, N. Shafizadeh, C. Crépin // Физика низких температур. — 2012. — Т. 38, № 8. — С. 917-922. — Бібліогр.: 23 назв. — англ.
0132-6414 PACS: 33.50.–j, 33.80.–b, 78.60.Lc http://dspace.nbuv.gov.ua/handle/123456789/117425 |
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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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