News tagged with laser system

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Dams -- what goes up must come down, and then what?

Time can take its toll on a dam. As dams age, they are more costly to repair and the risk of a catastrophic dam break increases--putting property and lives at risk. But, removing them can mean big changes to the community, ...

Nov 07, 2011
3 / 5 (2) 0

Putting artificial atoms on the clock

Around the turn of the century, scientists began to understand that atoms have discrete energy levels. Within the field of quantum physics, this sparked the development of quantum optics in which light is ...

Nov 07, 2011
5 / 5 (1) 0

Quantum behavior with a flash

Just as a camera flash illuminates unseen objects hidden in darkness, a sequence of laser pulses can be used to study the elusive quantum behavior of a large "macroscopic" object. This method provides a novel ...

Sep 16, 2011
4.3 / 5 (4) 2

Digital quantum simulator realized

(PhysOrg.com) -- The physicists of the University of Innsbruck and the Institute for Quantum Optics and Quantum Information (IQOQI) in Innsbruck have come considerably closer to their goal to investigate complex ...

Sep 01, 2011
5 / 5 (16) 4 | with audio podcast

Perfect welds for car bodies

Surface welding instead of penetration welding, allows a laser to produce a weld that is only visible on one side. But how do you control the laser power to prevent it burning a hole through the sheets of ...

May 11, 2011
5 / 5 (1) 0

Beaming rockets into space

Space launches have evoked the same image for decades: bright orange flames exploding beneath a rocket as it lifts, hovers and takes off into the sky. But an alternative propulsion system proposed by some ...

Jan 21, 2011
4.8 / 5 (22) 49 | with audio podcast