Sentences with phrase «called dielectric»

They are also called dielectric mirrors, and sometime hot mirrors and cold mirrors.

Using what's called dielectric properties — chemical changes that occur as a fruit ripens or rots, for example — the sensors emit an electromagnetic signal that can be monitored by a reader.

Not exact matches

The high - performance photodetector uses so - called surface plasmon polaritons, highly concentrated electromagnetic waves at metallic - dielectric interfaces, to combine optics and electronics on smallest space.

To develop a novel absorber that is both thin and with broadband performance, Jiang's team employed a type of thin, light periodic structure called a frequency - selective surface, which consists of an assembly of patterned conductors arranged in a two - dimensional array, usually backed by a thin dielectric, to reflect incident microwaves according to their frequency.

Such omnidirectional reflectance for dielectric structures is associated with three - dimensional photonic crystal nanostructures that sustain a so - called complete photonic band gap.

To distinguish the new actuator materials, silicones and other softer plastics were christened dielectric elastomers (they are also called electric - field - actuated polymers).

The authors use the opportunities provided by nano - engineered dielectrics, the so - called Photonic Crystals, to study both how to trap the atoms closer to each other and make them interact through the guided modes in the structure.

To make what they call spring rolls, the engineers wrap several layers of prestrained laminated dielectric elastomer sheet around a helical spring.

A second alternative - energy system, called Tsetse (named after the mythological African goddess of lightning), uses massive lightning - containment capacitors composed of dielectric glass and conductive metals from waste.