The fluorescence spectrum of 7-hydroxycoumarme m ethanol excited by a pulsed tunable dye laser reveals different features when excitation proceeds via one-photon and two-photon absorption. In the former case the spectrum shows two peaks delayed in time by approximately 2 ns and characterized by diff
Consecutive two-photon absorption of azulene in solution utilizing dye lasers
β Scribed by Amalia Bergman; Joshua Jortner
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 261 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
We report a spectroscopic study of consecutive two-photon absorption of azulene excited in the range 32800-42000 cm-', which provides infcrmntion concerning the cross sections for the S 1 + S3 and the S1 * Sa traxsitions.
* Eqatum to ref. [4]. S. hiurata has determined Y(S2 + SO) = O.G31-0.032 [S]. See ah0 ref. [6'].
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The two-photon absorption spectra of crystalline naphthalene and of the naphthalene molecule in solution were measured over the energy range 31000-45000 cm-' by monitoring the fluorescence excited by tunable dye lasers. ## The vibronically-induced odd-parity 'A,gd 'B$ and 'AIg+ 'B,, 'AQ-c 'Alg tr
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