Photonics Focus Magazine Vol. 4 Issue 2
This issue of Photonics Focus explores modern metrology, from the extraordinary precision of next-generation optical clocks, to the exquisitely sensitive mechanisms that allow scientists to detect gravitational waves originating from the collision of black holes. We look, too, at semiconductor lithography that has etch patterns so incredibly small fabricators must rely on advanced metrology instruments to find hidden defects.
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Launched in 2020, Photonics Focus® is the award-winning society magazine of SPIE. Articles showcase scientific discovery and innovative real-world applications of optics and photonics.
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