become a viable approach to create new states of matter in complex materials.
Conventionally, a high-frequency vibrational mode is driven resonantly by a mid-infrared
laser pulse and the lattice structure is modified through indirect coupling of this infrared-
active phonon to other, lower-frequency lattice modulations. Here, we drive the lowest-
frequency optical phonon in the prototypical transition metal oxide SrTiO3 well into the …