Author/Authors :
Mandal، نويسنده , , Debabrata and Tahara، نويسنده , , Tahei and Webber، نويسنده , , Naomi M. and Meech، نويسنده , , Stephen R.، نويسنده ,
Abstract :
The ultrafast fluorescence dynamics of solutions of the chromophore responsible for emission from the green fluorescent protein are measured by fluorescence up-conversion. Decays are non-exponential but well fit by a sum of two-exponentials. All decays have a prompt rise time. The two decay times are approximately independent of wavelength, but their weights are wavelength dependent, in a manner consistent with a spectral narrowing with time. The longer decay time has a weak dependence on medium viscosity.
