Time-varying systems, materials with properties that change over time, have opened new possibilities for the experimental ...

Understanding diffraction and dispersion is key to optical science, influencing technologies like spectroscopy, fiber optics, and advanced imaging systems.

Wave nature of light, mathematics of wave motion, electro-magnetic theory of light propagation, reflection and refraction, Fresnel coefficients, polarization, interference, Young's experiment, fringe ...

In 1967 the Russian physicist Victor Veselago predicted the existence of a material with a negative index of refraction, which he termed “left-handed.” He concluded that in the presence of such a ...

Wave nature of light, mathematics of wave motion, electromagnetic theory of light propagation, reflection and refraction, Fresnel coefficients, polarization, interference, Young's experiment, fringe ...

A new study led by DAI Qing’s team from the National Center for Nanoscience and Technology (NCNST) of the Chinese Academy of Sciences (CAS) and Javier Abajo from the Institute of Photonic Sciences ...

A new kind of “superlens”, capable of focusing light to a spot far smaller than its own wavelength, could be far easier to build than other proposed designs, researchers say. Traditional lenses are ...