First, some basics: Vision depends on light, which comes in a spectrum of wavelengths, ranging from very long to very short. Vertebrate eyes have two kinds of light receptors in the retina at the back ...

Scientists recently determined the optimal ultraviolet-light wavelength for keeping water free of microorganisms. They say that their brand new approach could be used by water treatment plants and ...

Ultraviolet (UV) light is used for everything from semiconductor lithography and eye surgery to water sterilization and micromachining. Volker Schmidt from Berliner Glas talked to Optics.org about the ...

Banner image: UV light being emitted by a krypton chloride excimer lamp, fueled by molecules moving between different states of energy. (Credit: Linden Research Group) A specific wavelength of ...

Geiger-mode avalanche photodiodes (GM-APDs) are highly sensitive light detectors, capable of detecting single photons. Photons of certain wavelengths, when absorbed by photodiodes, generate ...

Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems ...

Ultraviolet light is a type of electromagnetic radiation that makes black-light posters glow, and is responsible for summer tans — and sunburns. However, too much exposure to UV radiation is damaging ...

After sustained research into the fundamental theories and core technologies of vacuum ultraviolet nonlinear optical materials, a team of researchers from the institute successfully developed an ...

A specific wavelength of ultraviolet (UV) light is not only extremely effective at killing the virus which causes COVID-19, but is also safer for use in public spaces, finds new University of Colorado ...

Karl Linden advises various companies promoting the use of UV light for disinfection. He receives funding from federal agencies and industry to conduct research in his role as a professor at the ...