Abstract: Spatial resolution in conventional sonography is achieved through focusing and steering of an ultrasound beam. However, due to acoustic diffraction, the ability to focus an ultrasound beam ...

X-ray diffraction methods lie at the foundation of materials science. Determination of the crystal structures of natural minerals and, later, of crystals grown in the laboratory led to our ...

A novel class of programmable, self-healing hydrogel nanocomposites has been developed by combining cellulose nanocrystals ...

Abstract: Contribution: There are many on-line resources available to learn about optics and photonics, but no assessment tools exist to evaluate the learning achievements. This paper presents an ...

NASA’s James Webb Space Telescope has captured the infrared light of numerous features that previously were impossible to see ...