Could this also be used for manufacturing lots of other microscopic things? layer by layer?<p>"Instead, their method finds errors up to 0.017 nm along side-to-side measures (x and y axes) and 0.134 nm when assessing the distance between the two chips (z-axis)."<p>Could you make some very very sensitive and tiny seismic sensors with this?<p>edit:
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Arbabi also points out that this method can be used to make displacement sensors that can be used for measuring displacements and other quantities. "Many physical quantities that you want to detect can be translated to displacements, and the only thing you need is a simple laser and a camera," he says.<p>For instance, "if you want a pressure sensor, you could measure the movement of a membrane." Anything that involves movement—vibration, heat, acceleration—can in theory be tracked by this method.<p>"