News tagged with laser system

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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

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

New laser technique may help find supernova

One single atom of a certain isotope of hafnium found on Earth would prove that a supernova once exploded near our solar system. The problem is how to find such an atom - among billions of others. Researchers at the University ...

Aug 11, 2009 4.3 / 5 (3) 0