News tagged with laser pointer

Nanoscale nonlinear light source created

Not long after the development of the first laser in 1960 scientists discovered that shining a beam through certain crystals produced light of a different color; more specifically, it produced light of exactly twice the frequency ...

dateSep 22, 2011 in Nanophysics
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Manipulating light at will

Electrical engineers at Duke University have developed a material that allows them to manipulate light in much the same way that electronics manipulate flowing electrons.

dateAug 01, 2011 in General Physics
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Countering contamination for Mars spacesuits

To search for life on Mars, future astronauts would naturally want to step outside their living habitat for a walk. But the spacesuits keeping them alive might also carry Earth microbes or ingredients of life that could contaminate ...

dateJun 16, 2011 in Space Exploration
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Tying light in knots

(PhysOrg.com) -- The remarkable feat of tying light in knots has been achieved by a team of physicists working at the universities of Bristol, Glasgow and Southampton, UK, reports a paper in Nature Physics this week.

dateJan 17, 2010 in General Physics
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