If we take a look at theelectromagnetic spectrum, we can see thatvisible lightis only a small part of it. Our eyes can only see/detect/sense visible light, however there exists a much wider range of light, including ultraviolet light and infrared light which are invisible to the naked eye...
sound directly into light could lead to more efficient ways of generating terahertz waves, radiation that can be used to detect skin cancers even before they are visible on the surface.rnTerahertz radiation occupies the region between infrared and microwave frequencies on the electromagnetic spectrum....
Plasmons are electromagnetic oscillations that occur at the surface of a metal nanoparticle when it is struck by a photon and is in contact with a dielectric material — an insulator, such as glass, that can store an electrostatic charge. Electrons oscillate in resonance with the frequency of th...
The device acts as a broadband antenna that could, for example, enable a solar cell to capture a wider range of wavelengths. The gratings work equally well regardless of the angle of light, so there is no need to mechanically redirect the panels towards the Sun. But Zayats thinks his ...
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I decided to see if I could build a motor of the axial flux type using electromagnetic coils fashioned from a PCB's traces. In an axial flux motor, the electromagnetic coils forming the motor's stator are mounted parallel to a disk-shaped rotor. Permanent magnets are embedded in the disk...