Water molecules flip their orientation before splitting into hydrogen and oxygen. These acrobatics require significant energy ...

A research group recently discovered the disappearance of nonreciprocal second harmonic generation (SHG) in MnPSe₃ when integrated into a two-dimensional (2D) antiferromagnetic MnPSe₃/graphene ...

The optical properties of liquid crystals have been a subject of study for many years now, with previous papers investigating second harmonic generation in ferroelectric smectic liquid crystals being ...

Researchers developed a scalable fabrication process using soft nanoimprint lithography to create lithium niobate metalenses, ...

In situ diagnosis Multiphoton microscopy combines second- and third-harmonic generation (SHG and THG), along with two- and three-photon excitation, to rapidly visualize molecular and structural ...

To explore the reason why water splitting suffers from inefficiency, the researchers applied a sophisticated new light-based technique called phase-resolved second harmonic generation. Shown here, the ...

Depending on how they’re cut, crystals of these sorts have non-linear optical properties like second-harmonic generation, which combines two input photons into a single output photon with twice ...