Transient, vibrationally resolved fluorescence spectra measured by femtosecond up-conversion are recorded for the dye nile blue in methanol solution. The time evolution of the fluorescence band position involves a subpicosecond decay followed by the wellknown solvatochromic relaxation. The timing of
Femtosecond time-resolved fluorescence spectra of a coumarin dye in glycerol
โ Scribed by Hiroshi Murakami
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 697 KB
- Volume
- 89
- Category
- Article
- ISSN
- 0167-7322
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Inhomogeneous broadening of the electronic transitions of dyes in glycerol solutions have been observed by measuring the energy-resolved fluorescence decays as a function of excitation wavelength. The inhomogeneous broadening is shown to arise from a range of solvent-solute orientations, rather than
A new method, femtosecond time-resolved stimulated emission pumping fluorescence depletion (FS TR SEP FD), has been developed to study the vibrational relaxation of electronic excited states of molecules. Two relaxation rates of dye molecules in different solvents have been observed: (i) the intramo