Detection of recurrent fluorescence photons emitted from

We detected recurrent fluorescence photons from vibrationally hot ions stored in an electrostatic ion storage ring. By virtue of the mass-independent storage condition, various anions produced in the laser ablation ion source were simultaneously stored with their own velocities, and ionic species emitting photons were identi ed from the temporal pro le of the detected photons. The fluorescence synchronized with revolution of , through the bandpass lter for the known absorption band, were clearly observed.