Nonlinear optical physics at terahertz frequency
Terahertz (THz) waves have exhibited promising prospects in 6G/7G communications,
sensing, nondestructive detection, material modulation, and biomedical applications. With …
sensing, nondestructive detection, material modulation, and biomedical applications. With …
Revealing Novel Aspects of Light-Matter Coupling by Terahertz Two-Dimensional Coherent Spectroscopy: The Case of the Amplitude Mode in Superconductors
Recently developed terahertz (THz) two-dimensional coherent spectroscopy (2DCS) is a
powerful technique to obtain materials information in a fashion qualitatively different from …
powerful technique to obtain materials information in a fashion qualitatively different from …
Investigating Josephson plasmons in layered cuprates via nonlinear terahertz spectroscopy
Josephson plasmons in layered superconductors represent a natural source of optical
nonlinearity, thanks to their intrinsically anharmonic nature. Here we derive the selection …
nonlinearity, thanks to their intrinsically anharmonic nature. Here we derive the selection …
Linear and nonlinear current response in disordered -wave superconductors
We present a detailed theoretical investigation of the linear and nonlinear optical response
in a model system for a disordered d-wave superconductor. By evaluating the quasiparticle …
in a model system for a disordered d-wave superconductor. By evaluating the quasiparticle …
Generalized Josephson plasmons in bilayer superconductors
Layered superconductors like high-T c cuprates display out-of-plane plasma oscillations
between layers sustained by the weak Josephson coupling among the superconducting …
between layers sustained by the weak Josephson coupling among the superconducting …
Principles of two-dimensional terahertz spectroscopy of collective excitations: The case of Josephson plasmons in layered superconductors
Two-dimensional terahertz spectroscopy (2DTS), a terahertz analog of nuclear magnetic
resonance, is a new technique poised to address many open questions in complex …
resonance, is a new technique poised to address many open questions in complex …
Principles of 2D terahertz spectroscopy of collective excitations: the case of Josephson plasmons in layered superconductors
Two-dimensional terahertz spectroscopy (2DTS), a terahertz analogue of nuclear magnetic
resonance, is a new technique poised to address many open questions in complex …
resonance, is a new technique poised to address many open questions in complex …
Manipulating plasma excitations with terahertz light pulses in superconducting cuprates
Layered cuprates offer a preferential playground for optical non-linearity thanks to the
emergence, below Tc, of soft out-of-plane Josephson plasmons. The hallmark of such a non …
emergence, below Tc, of soft out-of-plane Josephson plasmons. The hallmark of such a non …
Optical Absorption in Tilted Geometries as an Indirect Measurement of Longitudinal Plasma Waves in Layered Cuprates
Electromagnetic waves propagating in a layered superconductor with arbitrary momentum,
with respect to the main crystallographic directions, exhibit an unavoidable mixing between …
with respect to the main crystallographic directions, exhibit an unavoidable mixing between …
Revealing the frequency-dependent oscillations in the nonlinear terahertz response induced by the Josephson current
Nonlinear responses of superconductors to intense terahertz radiation has been an active
research frontier. Using terahertz pump-terahertz probe spectroscopy, we investigate the c …
research frontier. Using terahertz pump-terahertz probe spectroscopy, we investigate the c …