San Bernardino County firefighters test Sonic Fire Tech's new sound wave technology to extinguish fires without water. Great ...
Figure 1. (a) Chalcogenide glass; (b) All chalcogenide glass metalens, scale bar is 2 mm; (c) SEM image of chalcogenide glass micropillars, scale bar is 20 μm; (d) Local magnification image of (c), ...
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