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Tuesday, October 27, 2026Updated 00:23 UTC

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Metalens microscope switches focus with voltage, not moving optics

Source: Phys.org · Oct 26, 2026 21:20 UTC

Hurricane Helene seen from the International Space Station — File photo NASA · Public domain · Source

The Quick Take

Just as it is difficult for a camera to keep both a nearby flower and a distant mountain sharply focused at the same time, conventional optical microscopes face a similar challenge when imaging structures located at different depths inside the body. Tighter focusing of light improves spatial resolution, but at the same time reduces the depth range over which the image remains sharply focused.

Read the full story at Phys.org

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