Blue diode laser designs with kW powers are advancing in industrial processing applications, including cutting, welding and foil joining of copper and other high-reflectance materials.
IMAGE OF THE WEEK
Beauty from a Fabrication Error
This beautiful pattern appeared randomly on the sample due to fabrication mistake. A thin-film, deposited on a silicon dioxide sample, and it had a rectangular shape. Once I put it inside the PECVD chamber to deposit silicon dioxide on top to protect it, instead, I accidentally ran the PECVD clean process, which uses very high RF power with gases that started to remove the thin film. It created this symmetric pattern on the sample surface.
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