laser

Building a better quantum computer with lasers and (impure) diamonds

"If the development of a quantum computer were like motor racing, then we would currently be in the twisty-turny bit that comes before we barrel over the mountain and hit the long, fast straightaway. We know the requirements for quantum computing; we even know systems that kinda-sorta meet these requirements. But no existing quantum computing architecture—that is, how we make quantum bits (qubits) and perform operations on them—is really all that satisfying. If you don't even know which materials are best for building a quantum computer, it makes progress awfully slow..."

How scientists turned a living cell into a green laser

"Green Fluorescent Protein (GFP) does exactly what its name implies: when excited by light from the blue end of the spectrum, it emits a satisfying green glow. But its deceptively simple name doesn't begin to convey how it has changed biology. It can be fused with other proteins and made by just about any cell, letting researchers track all sorts of biological processes. Variants have been made that glow other colors. Three people got Nobel Prizes for its development. Glowing animals have even become works of art and pets."

Physicists build world's first antilaser

"Less than a year after it was first suggested, the world’s first antilaser is here. A team of physicists have built a contraption that, instead of flashing bright beams, utterly extinguishes specific wavelengths of light. Conventional lasers create intense beams of light by stimulating atoms to spit out a coherent beam of light in which all the light waves march in lockstep. The crests of one wave match the crests of all the others, and troughs match up with troughs. The antilaser does the reverse: Two perfect beams of laser light go in, and are completely absorbed."

Scientists Invent Tractor Beam

We're caught in the 3GM News tractor beam and it's pulling us in!!surprise

Lasers reaching their limit

Somebody is going to have to break the news to Darth Vader. His Death Star's planet destroying potential is going to be way behind schedule. Research scheduled to be published in an upcoming issue of the journal Physical Review Letters shows that lasers are already close to reaching their maximum intensity and that the next generation of lasers currently being developed might be able to reach that limit.

In 1997, an experiment at SLAC sent 47-billion eV electrons from its 2 mile long accelerator and collided them with a one trillion watt green laser to create a monstrous electromagnetic field. When the electrons and the photons from the laser impacted, they created higher energy gamma-ray photons, these gamma-ray photons then collided with photons in the laser beam again and shattered the vacuum as matter was spontaneously created from light within the experiment.

WickedLasers Unveils "Lightsaber"

It goes without saying that this product is not safe for children

With recent advances in lasers, many have fantasized about creating "real life lightsabers". Many military commanders have fantasized about creating portable blasters along the lines of those portrayed in fictional workers like Star Trek and Star Wars. The Spyder III Pro Arctic laser from WickedLasers can be seen perhaps as the culmination of those efforts and perhaps the first consumer laser weapon.

How to make a star on Earth

Livermore, California (CNN) -- Scientists at a government lab here are trying to use the world's largest laser -- it's the size of three football fields -- to set off a nuclear reaction so intense that it will make a star bloom on the surface of the Earth.

The Lawrence Livermore National Laboratory's formula for cooking up a sun on the ground may sound like it's stolen from the plot of an "Austin Powers" movie. But it's no Hollywood fantasy: The ambitious experiment will be tried for real, and for the first time, late this summer.

Modeling a black hole with a 300 GigaWatt laser

Researchers have figured out how to recreate the environment near a black hole in order to understand the processes that cause them to emit high energy X-rays.

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