New laser pulse generation nano-diamond technology

Purdue University recently published a study in Nature, saying that it has developed a new type of laser pulser that can produce artificial nano-diamonds and specific patterns on the graphite surface. This technology has an important impact on future biosensors for nanodiamond materials, quantum computers, fuel cells and next-generation computer chips.

Gary Cheng, an associate professor in the Department of Industrial Engineering at Purdue University, said that compared to traditional synthetic diamond production processes, this new technology does not require high temperature and high pressure conditions to deposit nanodiamonds; the entire experiment is carried out at room temperature without the need for high temperature and high pressure vessels. This significantly reduces production costs. In addition, the experiment also developed a "write" technique that selectively "writes" the nanodiamonds in the form of a fixed pattern on the surface of the workpiece. The researchers covered the glass sheets on a multi-layer graphite sheet and placed them under ultra-fast laser pulses. The graphite sheets were instantly converted into ionized plasma, which produced a downward force; graphite plasma. The body cannot be dissipated due to being covered by the glass sheet, and thus is rapidly converted into diamond.

Gary Cheng said that these diamonds are nano-scale and the coating is very hard, which is very suitable for high temperature sensor equipment.

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