We report on the demonstration of ultrafast optical reversal of the ferroelectric polarization in
LiNbO 3. Rather than driving the ferroelectric mode directly, we couple to it indirectly by …

Nonlinear optics is a well-established field of research that traditionally relies on the
interaction of light with macroscopic nonlinear media over distances significantly greater …

We experimentally demonstrate efficient third harmonic generation from an indium tin oxide
nanofilm (λ/42 thick) on a glass substrate for a pump wavelength of 1.4 μm. A conversion …

Chalcogenide photonics offers unique solutions for a broad range of applications from mid-
infrared sensing to integrated, ultrafast, ultrahigh-bandwidth signal processing. However, to …

We demonstrate a simple, femtosecond-scale wavelength tunable, subwavelength-thick
nanostructure that performs efficient wavelength conversion from the infrared to the …

The development of nonlinear flat-optic nanostructures, also known as optical metasurfaces,
offers unprecedented enhancement of light-matter interactions without the need for phase …

We report an experimental and numerical investigation of third-and fifth-harmonic
generation in a CaF 2 crystal with 20 fs (three-optical-cycle), 2 μ m driving pulses. The …

We show that an appropriately designed chalcogenide metasurface allows the
enhancement of harmonic generation in the UV range, a regime that conventional wisdom …

We discuss the effect of second harmonic generation via the Čerenkov-like process in
nonlinear bulk media and waveguides. We show that in both schemes the Čerenkov …

Recent years have witnessed significant developments in the study of nonlinear properties
of various materials at the nanoscale. Often, experimental results on harmonic generation …