Electromagnetic radiation includes radio waves, microwaves, terahertz radiation, infrared radiation, visible light, ultraviolet radiation, x rays and gamma rays. The electromagnetic spectrum extends ...

Metamaterials are artificial composite materials composed of at least two different materials. They possess a large number of ...

In their description, Konstantin Bliokh at RIKEN and the Australian National University and his colleagues show that the “helicity” of free-space (or bulk) photons plays the key role. Electromagnetic ...

Detectors for Electromagnetic Radiation Detectors for Electromagnetic Radiation: In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the ...

Metamaterial computer solves integral equations encoded in electromagnetic waves Russo began by sending microwaves through a structure made up of several randomly-positioned Teflon objects and a ...

All electromagnetic radiation travels through space as invisible waves of energy. And it's the specific wavelength of the radiation that determines all of its effects, both physical and biological.

Letter Published: 20 August 1949 Electromagnetic Radiation from Wave-Guides and Horns L. LEWIN Nature 164, 311 (1949) Cite this article ...