There are times when the new generation of optics-based biosensors amaze me: they are incredibly sensitive, easy to use, and very reliable. Instruments based on surface plasmons are already on the ...

Waveguides are crucial for directing light, but truly useful waveguides should confine light on the nanoscale. Researchers show that a semiconducting nanowire close to a metallic surface can confine ...

Researchers have fabricated a metallic waveguide with a nano-sized cavity to select certain wavelengths of light. This work may contribute to developing devices that can compute based on light instead ...

Waveguides for electromagnetic radiation are nothing new; in fact they have been crucial to our ability to employ electricity for useful applications. One can think of the copper wire used to carry ...

Plasmonic waveguides open the possibility to develop dramatically miniaturized optical devices and provide a promising route towards the next-generation of integrated nanophotonic circuits for ...

(a) Ideal homogenous zero-index medium. (b) Zero-index medium’s applications in free-space cloak, arbitrarily shaped waveguide, and photonic crystal surface emitting laser. (c) Schematic of Dirac-cone ...

One of the most important components of satellites that enable telecommunication is the waveguide, which is a metal tube for guiding radio waves. It is also one of the heaviest payloads satellites ...

Waveguides generate digital images directly in the field of vision and enable smart glasses such as the Meta Ray-Ban. We explain the technology behind them. Waveguides, as they are known in German, ...

Rectangular waveguide is the most common type of transmission line used in microwave communication. It is a metallic transmission line ideally suitable for microwave frequencies and is employed to ...

(Nanowerk Spotlight) The simplest way to trap light, or in general electromagnetic waves, in a finite region is to realize a region surrounded by mirrors so that light is not able to escape. The ...