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'Science GIFs' was one of the largest and most active science-oriented collections on the Google+ social network with over 325,000 followers at the time of its shutting down. This website serves as a backup of the content from the collection.

https://plus.google.com/collection/A2NSc

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High Speed Laser Engraving

10 March 2018

The high spatial and temporal coherence of lasers allows them to be precisely focused into small spots, making them ideal for optical cutting and lithography applications. While most people are familiar with continuous wave (CW) lasers that constantly emit the same amount of light, pulsed lasers can be used to achieve significantly higher peak power by emitting discrete pulses of light.

Here a pulsed near-infrared laser can be seen engraving a metal plate with a complex design in real time. A preliminary red laser (635 nm) is used to validate the positioning of the pattern on the surface before the primary laser (1064 nm) begins the engraving process.

Source: https://youtu.be/iKTR9bl-T00 (Z-Tech)

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High Speed Laser Engraving