The optical emission spectrum of laser-desorbed C-60 has been investig
ated as a function of laser fluence for desorption with a KrF excimer
laser (pulse length 20 ns). The observed spectra show close similariti
es to black-body radiation and can be fitted with the Planck black-bod
y formula, thus giving information on the temperature of the fullerene
beam. The temperatures of approximately 3000 K which are obtained are
in good qualitative agreement with previous, indirect temperature est
imates.