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Three-Laser Method Goes Beyond Diamond Films

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Michael D. Wheeler

Three years after unveiling an advanced method for depositing diamond thin coats, QQC Inc. has disclosed that it used the same three overlapping pulsed lasers to improve the surface of metals, ceramics and polymers. The multilaser process gained attention (Photonics Spectra, June 1996, page 34) by creating diamond films several thousand times faster and more efficiently than chemical vapor deposition. The technique employs three lasers: one excimer (a KrF at 248 nm or an XeCl at 308 nm); an Nd:YAG at 1064 nm; and a CO2 at 10.6 µm. As news of the discovery spread, the company received a...Read full article

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