Second harmonic generation (SHG) microscopy is a label-free, nonlinear optical imaging technique that exploits the frequency-doubling of incident photons in non-centrosymmetric structures. It provides ...

A material may appear flawless on the surface yet fail to function properly. The cause lies in structural defects hidden ...

Plasmonic resonances have opened new opportunities to manipulate nanoscale light–matter interactions, allowing to overcome the inherent limitations of natural materials. This field was pioneered by ...

Ultrafast optical measurements expose buried crystal flaws in atom-thin insulating films, offering a non-destructive route to ...

High-order harmonic generation (HHG) — a technique that converts light into much higher frequencies — is an essential tool for exploring otherwise inaccessible parts of the electromagnetic spectrum.