tag: diamonds

Power/Performance Bits: Dec. 27
By Jesse Allen - 27 Dec, 2016 - Comments: 0

Tiny diamond radio Researchers at Harvard built the world's smallest radio receiver, built out of an assembly of atomic-scale defects in pink diamonds. The radio uses tiny imperfections in diamonds called nitrogen-vacancy (NV) centers. To make NV centers, researchers replace one carbon atom in a diamond crystal with a nitrogen atom and remove a neighboring atom -- creating a system that i... » read more

Reading About Quantum Computing
By Katherine Derbyshire - 14 Aug, 2014 - Comments: 1

For the last several months, I’ve been working on a series of articles about quantum computing: how quantum computers are different from conventional computers, what materials systems might be appropriate for use in qubits, and, for the upcoming last article, how one might actually build and program a quantum computer. Some of the subtopics are familiar ground for me, and probably for most... » read more

Manufacturing Bits: April 8
By Mark LaPedus - 08 Apr, 2014 - Comments: 0

Making cheap diamonds Graphite and diamonds are two forms of the same element--carbon. In graphite, carbon atoms are arranged in planar sheets and the material is soft. On the other hand, diamonds consist of carbon atoms that are bonded in all directions, making these structures extremely hard. [caption id="attachment_11311" align="alignleft" width="150"] This illustration shows four layers... » read more

Amazing New Materials
By Michael Watts - 20 Mar, 2014 - Comments: 0

Materials are fundamental to active photonics devices, and there were plenty of developments discussed at Photonics West 2014. Element Six was happy to talk about progress in making large single-crystal diamond and even larger polycrystalline diamond wafers. Carbon has a number of stable forms; diamond, graphite, nanotubes and amorphous carbon. The Element Six process uses CVD conditions in ... » read more

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