News tagged with visible light

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New metamaterial gives light a one-way ticket

The light-warping structures known as metamaterials have a new trick in their ever-expanding repertoire. Researchers at the National Institute of Standards and Technology (NIST) have built a silver, glass and chromium nanostructure ...

dateJul 01, 2014 in Optics & Photonics
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Smartphone radiation detector app tests positive

The popularity of smartphones continues to grow with the availability of an ever-growing range of applications. The app, Radioactivity Counter, is designed to measure a person's exposure to radiation. It claims to accurately ...

dateJun 30, 2014 in Software
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A better imager for identifying tumors

Before they excise a tumor, surgeons need to determine exactly where the cancerous cells lie. Now, research published today in The Optical Society's (OSA) journal Optics Letters details a new technique that could give surgeons ...

dateJun 19, 2014 in Optics & Photonics
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The 'Serpent' star-forming cloud hatches new stars

( —Stars that are just beginning to coalesce out of cool swaths of dust and gas are showcased in this image from NASA's Spitzer Space Telescope and the Two Micron All Sky Survey (2MASS). Infrared light has been ...

dateMay 30, 2014 in Astronomy
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