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Diamonds Last Forever? No, Laser can Cut

UV laser has already showed the ability to cut diamonds by atomic decomposition, and the breakthrough technology has great influence on quantum computers and other diamond science and technology field.

From: iAbrasive.comDate: 2015-05-21 06:50:18Views: 394

 

UV laser has already showed the ability to cut diamonds by atomic decomposition, and the breakthrough technology has great influence on quantum computers and other diamond science and technology field.

Australian researchers publish their research papers in the journal Nature Communications. One of authors, professor of Australia's Macquarie University Photonics Research Center, Richard Mildren says they have discovered a clue when developing diamond laser. He says the laser beam could go through diamond in these equipments, and diamond plays an important role like engine in the system.

The diamond laser stops working after the equipment being operated for a period of time. Through the examination of the system, researchers find that the cut surface of diamond gets erosion in use, which finally destroys the light path of laser beams.

Mildren refers their team find the UV laser that can shed a single diamond atom when they are studying why it happened. He thinks the existing sharp microscopic needles have been able to achieve the changes of a single atom. But currently, the technology only works for some materials with loose connections and easy to move atoms.

By using laser, researchers are able to manipulate a single carbon atom in diamonds, and we all know that the combination way of the diamond carbon atoms is very solid.

"We all know that the laser has precise small scale cutting and drilling capacity, but the laser at the atomic level always has notoriously poor resolution. If the resolution of the laser can be improved, it will make a great possibility of using laser at the atomic level.” Mildren says, and he thinks high-resolution laser has important significance on data storage, quantum computer, and nano sensors devices in the future.

Using UV laser does not produce the heat which will limit the cutting ability to tiny precision. Mildren and his colleagues have been able to manipulate atoms in diamond "painting" the structure of molecules with a diameter of about 10-20 nanometers.

 

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