Sum-frequency generation (SFG) is a powerful vibrational spectroscopy that can selectively probe molecular structures at surfaces and interfaces, but its spatial resolution has been limited to the ...

A new atom camera uses one ultracold rubidium atom to map light intensity and polarization with spatial resolution below 100 nanometers.

Microspheres placed on a specimen in an interference microscope setup enable topographic measurements of structures below the physical resolution limit. Credit: Journal of Optical Microsystems (2022).

This article explores LIG’s SMAL lenses, including their design principles, manufacturing methods, and performance in ...

Researchers built a silver-grooved chip that channels laser energy into nanometer-spaced peaks, beating the diffraction limit and aiding light-matter studies. (Nanowerk News) Physics is full of pesky ...