AI-designed unidirectional imagers

Traditional optical imaging and communication systems, typically composed of lenses, perform imaging operations in both forward and backward directions. Similar to a pipe that enables liquid to flow through from one end to ...


Communications system achieves fastest laser link from space yet

In May 2022, the TeraByte InfraRed Delivery (TBIRD) payload onboard a small CubeSat satellite was launched into orbit 300 miles above Earth's surface. Since then, TBIRD has delivered terabytes of data at record-breaking rates ...

Energy & Green Tech

Californians told not to charge EVs as grid struggles in heat wave

Californians were told Wednesday not to charge their electric vehicles during peak hours, just days after the state said it would stop selling gas-powered cars, as the aging electricity grid struggles with a fearsome heatwave.

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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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