Fig. 3: Selective excitation of multiple phonons.
From: Driving forces for ultrafast laser-induced sp2 to sp3 structural transformation in graphite
a Phonon dispersion spectrum and time evolution of all forty-eight Γ-point projected phonon branches in graphite. Three excited phonons are \({E}_{2g}^{1}\), \({B}_{2g}\), and \({E}_{2g}^{2}\) modes. b Vibrational modes of three excited phonons. The pink arrows indicate the direction of relative motions of the atoms.
