The mirror-studded camera is designed to take glamor shots of quantum physics experiments.
When built, the MAGIS-100 atom interferometer will be the largest in the world. But it's still missing a key component: a detailed camera.In suburban Chicago, about 34 miles west of Lake Michigan, sits a hole in the ground that goes about 330 feet straight down. Long ago, scientists had the shaft drilled for a particle physics experiment that’s long vanished from this world.
One way to get that information is to set up multiple cameras, allowing them to snap pictures from multiple angles and stitch them together for a more detailed view. That can work great with, say, five cameras. But some physics experiments require such precise measurements that even a thousand cameras might not do the trick.So, in a Stanford basement, researchers decided to set out on making their own system to get around that problem.
For the MAGIS-100 project, the subject of the shot—the cloud of strontium atoms—would sit within the dome. A brief light flash from an external laser beam would then scatter off the mirror-dots and through the cloud at a myriad angles. The lens would pick up the resulting reflections, how they’ve interacted with the molecules, and which dots they’ve bounced off.
While the creators haven’t gotten around to testing the camera on atoms just yet, they did try it out by scanning some suitably sized sample parts: 3D-printed letter-shaped pieces the size of the strontium droplets they intend to use. The photo they took was so clear, they could find defects where the little letters D, O, and E varied from their intended design.
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