Electronics & Semiconductors

OPD optical sensors that reproduce any color

Photodiodes are optical sensors that convert the energy of light into electrical energy. Organic photodiodes (OPDs) respond quickly and have the advantage of being able to realize colors free from color filters because they ...

Electronics & Semiconductors

Squeezing light inside memory devices could help improve performance

Researchers have developed a method to 'squeeze' visible light in order to see inside tiny memory devices. The technique will allow researchers to probe how these devices break down and how their performance can be improved ...

Engineering

Novel sensor improves lighting control

Humans spend approximately 90% of their time indoors, for example at the office. Consequently, it is essential to equip the office environment with a high quality lighting control system. Unfortunately, current systems are ...

Other

Boeing 737 MAX could get EU clearance 'by year's end'

Boeing's troubled 737 MAX airliner, grounded for 18 months after two deadly accidents, could receive certification to fly again in Europe "by the end of the year," the EU's air safety chief said Friday.

Telecom

Optical Wi-Fi allows for ultrafast underwater communications

EPFL spin-off Hydromea has developed a miniature optical modem that can operate down to 6,000 meters below the ocean's surface. It is sensitive enough to collect data at very high speeds from sources more than 50 meters away.

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Light

Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.

Three primary properties of light are:

Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.

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