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The world’s fastest microscope captures electrons down to the attosecond


A single attosecond lasts just one quintillionth of a second.

Mohammed Hassan, a UA associate professor of physics and optical sciences, likens transmission electron microscopes to a smartphone’s camera. To make this a reality, researchers turned to the work pioneered by 2023’s winners of the Nobel Prize in Physics, who generated the first extreme ultraviolet radiation pulse, also measured in attoseconds. “The improvement of the temporal resolution inside of electron microscopes has long been anticipated and the focus of many research groups,” Hassan said on Wednesday.

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