Time-varying media have recently emerged as a new paradigm for wave manipulation, due
to the synergy between the discovery of highly nonlinear materials, such as epsilon-near …

Efficient nonlinear optical interactions are essential for many applications in modern
photonics. However, they typically require intense laser sources and long interaction …

In its 60 years of existence, the field of nonlinear optics has gained momentum especially
over the past two decades thanks to major breakthroughs in material science and …

In the continuously evolving realm of nonlinear optics, epsilon near zero (ENZ) materials
have captured significant scientific interest, becoming a compelling focal point over the past …

During the past few years, the optics and photonics communities have renewed their
attention toward transparent conducting oxides (TCOs), which for over two decades have …

We report a switchable time-varying mirror, composed of an indium-tin-oxide–gold bilayer,
displaying a tenfold modulation of reflectivity (Δ R≈ 0.6), which saturates for a driving-pump …

The conversion of a photon's frequency has long been a key application area of nonlinear
optics. It has been discussed how a slow temporal variation of a material's refractive index …

For decades, nonlinear optics has been used to control the frequency and propagation of
light in unique ways enabling a wide range of applications such as ultrafast lasing, sub …

Time-varying metasurfaces are emerging as a powerful instrument for the dynamical control
of the electromagnetic properties of a propagating wave. Here we demonstrate an efficient …

Indium tin oxide (ITO) films have recently emerged as a new class of functional materials for
nonlinear optical (NLO) devices due to their exotic properties around epsilon-near-zero …