How can we measure visible light? The electromagnetic spectrum includes all forms of light energy, known as electromagnetic radiation. (1) Different types of electromagnetic radiation such as radio ...

Over the past several decades, researchers have moved from using electric currents to manipulating light waves in the near-infrared range for telecommunications applications such as high-speed 5G ...

Venus appears pale yellow in visible light, but ultraviolet images reveal dramatic dark and bright patterns moving with the ...

Researchers have created visible lasers of very pure colors from near-ultraviolet to near-infrared that fit on a fingertip. The colors of the lasers can be precisely tuned and extremely fast -- up to ...

Electro-optical detectors are used to measure or sense the radiation emitted or reflected by objects within the detector’s optical field of view (FOV). Passive systems operate without any illumination ...

Chemists have built a microscopic hollow shell that behaves a little like a living cell, taking in raw ingredients and ...

Engineers have invented a breakthrough optical phase modulator that controls visible light -- without dimming it -- with the smallest footprint and lowest power consumption. New device will improve ...