Fig. 4: Simulation of a pulse train excitation.
From: Femtosecond control of phonon dynamics near a magnetic order critical point
a Phenomenology for advanced control, suspending the system starting in a ground state |0> in an excited state |f>. Energy (E) surface shown. b, c Optimal control of the oscillation, guiding the envelope of the PLD signal (blue lines) along the desired (green lines) b triangular or c sinusoidal curve by applying a train of 15 pulses with the same fluence, timed at the moments indicated by black circles on the horizontal axis. The deviation from the initial temperature is plotted in orange. The simulations used the model parameters determined from the experiment.
