Two-photon absorption and quantum light spectroscopy have emerged as transformative tools in modern optical research. At the heart of these techniques is the simultaneous absorption of two photons to ...

Light can do more than illuminate a material. In some cases, it can temporarily change how electrons move through it.

Scientists are learning how to temporarily reshape materials by nudging their internal quantum rhythms instead of blasting ...

A nanostructure made of silver and an atomically thin semiconductor layer can be turned into an ultrafast switching mirror ...

It is remarkable that Raman spectra can, with the help of statistical inference, be used to predict cellular physiology and proteome composition. By making this possible, the work of Kamei et al. has ...

Plasmonic nanogap confinement extends sum frequency vibrational spectroscopy to the nanoscale, enabling direct imaging of ...

Terahertz (THz) radiation, which occupies the frequency band between microwaves and infrared light, is essential in many next-generation applications, including high-speed wireless communications, ...

Sum-frequency generation (SFG) is a powerful vibrational spectroscopy that can selectively probe molecular structures at ...

A central part of the experiment is a hybrid nanostructure that combines two materials with very different properties.