Light–matter interaction in 2D and topological materials provides a fascinating control knob
for inducing emergent, non-equilibrium properties and achieving new functionalities in the …

Electromagnetic radiation in the terahertz (THz) frequency range is a fascinating
spectroscopic tool that provides resonant access to fundamental modes, including the …

In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …

In this paper, we will review both past and recent progresses in the generation, detection
and application of intense terahertz (THz) radiation. We will restrict the review to laser based …

Ultrafast responses of BCS superconductor Nb 1-x Ti x N films in a nonadiabatic excitation
regime were investigated by using terahertz (THz) pump-THz probe spectroscopy. After an …

When the continuous symmetry of a physical system is spontaneously broken, two types of
collective modes typically emerge: the amplitude and the phase modes of the order …

Strong optical pulses at mid-infrared and terahertz frequencies have recently emerged as
powerful tools to manipulate and control the solid state and especially complex condensed …

Superconducting electronics based on Josephson junctions are used to sense and process
electronic signals with minimal loss; however, they are ultrasensitive to magnetic fields …

We demonstrate experimentally that single-photon detection can be achieved in micrometer-
wide NbN bridges, with widths ranging from 0.53 to 5.15 μ m and for photon wavelengths of …

We investigate the dynamics of a phonon-mediated superconductor driven out of
equilibrium. The electronic hop** amplitude is ramped down in time, resulting in an …