Figure 4
From: Non-thermal hot electrons ultrafastly generating hot optical phonons in graphite
Optical-phonon broadenings during the transient.
(a) TrPES spectra recorded under 52-mW pump (left) and the simulated spectra (right). (b) Fitting parameters. (c) A plot of the fitting parameters σ 2 and a with respect to Tel for t > 1.0 ps.
