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Professor Zenghu Chang breaks world-record for the shortest laser pulse again

From UCF Today: "UCF Researchers Set Record for Fastest Light Pulse - Again"

A research team at the University of Central Florida has demonstrated the fastest light pulse ever developed, a 53-attosecond X-ray flash.

The group led by Professor Zenghu Chang beat its own record set in 2012: a 67-attosecond extreme ultraviolet light pulse that was the fastest at the time.

At one-quintillionth of a second, an attosecond is unimaginably fast. In 53 attoseconds, light travels less than one-thousandth of the diameter of a human hair.

In the same way high-speed cameras can record slow-motion video of flying bullets, attosecond light pulses allow scientists to capture images of fast-moving electrons in atoms and molecules with unprecedented sharpness.

As reported today in Nature Communication, the pulses Chang has now demonstrated are not just shorter in duration, but also in wavelength. The new light reaches an important spectral region, the so called “water window,” where carbon atoms absorb strongly but water does not. more...

Laser Focus World: Once again, CREOL researchers set record for shortest light pulse

 

Posted Friday, August 4, 2017

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