News tagged with laser beam

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Laser fusion experiment yields record energy

(Phys.org) —In the early morning hours of Aug.13, Lawrence Livermore's National Ignition Facility (NIF) focused all 192 of its ultra-powerful laser beams on a tiny deuterium-tritium filled capsule. In ...

Aug 27, 2013
4.7 / 5 (72) 52 | with audio podcast

3D-printer with nano-precision

Printing three dimensional objects with incredibly fine details is now possible using "two-photon lithography". With this technology, tiny structures on a nanometer scale can be fabricated. Researchers at ...

Mar 13, 2012
4.9 / 5 (68) 8 | with audio podcast

What is the geometry of the universe?

One of the big questions in cosmology regards the shape of the universe. "Shape" in this case is not the distribution of galaxies, but rather the shape of space and time itself. In general relativity, space ...

Sep 24, 2014
4.5 / 5 (54) 40

Tractor beams come to life

Tractor beams, energy rays that can move objects, are a science fiction mainstay. But now they are becoming a reality -- at least for moving very tiny objects.

Sep 08, 2010
4.5 / 5 (49) 13 | with audio podcast

Seeing quantum mechanics with the naked eye

(PhysOrg.com) -- A Cambridge team have built a semiconductor chip that converts electrons into a quantum state that emits light but is large enough to see by eye. Because their quantum superfluid is simply ...

Jan 09, 2012
4.7 / 5 (46) 4 | with audio podcast

Scientists build world's first anti-laser

More than 50 years after the invention of the laser, scientists at Yale University have built the world's first anti-laser, in which incoming beams of light interfere with one another in such a way as to perfectly ...

Feb 17, 2011
4.6 / 5 (44) 18 | with audio podcast