The interaction of intense, few-femtosecond infrared (IR) pulses with solids can induce light-field-driven phenomena, reversibly modifying their electro-optical properties on attosecond time scales. This opens new avenues for ultrafast optoelectronics and petahertz device applications. However, harnessing these coherent light–matter states requires a deeper understanding of the fundamental...
Advancements in quantum optics and squeezed light generation have transformed various domains of quantum science and technology. However, real-time quantum dynamics remain an underexplored frontier. Here, we extend quantum optics into the ultrafast regime, providing direct experimental evidence that quantum uncertainty is not a static constraint but evolves dynamically with the system’s state...
Laser control strategies enable perturbing selected degrees of freedom and driving matter in metastable states often inaccessible under equilibrium conditions. In the optical regime this is achieved through either nonlinear phononics or impulsive vibrational spectroscopy (IVS), in which coherent phonons are launched upon ultrashort laser excitation. The impulsive vibration of the lattice...
