Abstract: The well-known coupled-mode theory of waveguides is extended to include dielectric guides made of anisotropic materials. Exact coupled-wave equations for anisotropic dielectric waveguides ...

Nonlinear optics is the study of how intense light interacts with matter. The optical response of a material usually scales linearly with the amplitude of the electric field. At high powers ...

Jan. 15, 2025 — Astronomers have detected an intensely brightening and dimming quasar that may help explain how some objects in the early universe grew at a highly accelerated rate. The ...

Department of Mechanical Science and Engineering, Grainger College of Engineering, University of Illinois Urbana−Champaign, Urbana 61801 Illinois, United States Materials Research Laboratory, ...

Optic neuritis (ON) is an inflammation that damages your optic nerve. It can cause vision loss and pain when you move your eyes. As the inflammation goes away, your symptoms usually get better ...

For the first time, a team of researchers from the Fraunhofer Institute for Applied Optics and Precision Engineering IOF and the University of New Mexico have succeeded in cooling silica glass by ...

Our lab is particularly focused on colloids that are anisotropic, away from equilibrium, or in crowded environments, all of which are relevant to coatings, the production of multiphase materials, and ...

This is not the case, however, in doubly refractive gems. All doubly refractive gems are anisotropic crystals, and the arrangement of their lattice points varies with direction. Uniaxial materials ...

Russia is striding ahead with its wielding of fiber-optic drones, the head of Ukraine's drone programs told high-ranking Ukrainian officials at the start of the year. "The enemy continues to ...

Russian forces are using explosive-packed drones connected to their operators by fiber-optic cables to deliver unjammable precision strikes on Ukrainian troops and military equipment, and Kyiv is ...