Anne L'Huillier, one of 2023 year's Nobel laureates in physics, is coming to Chalmers and giving the lecture "The route to attosecond pulses" February 26. You are welcome to attend at Runan!
Overview
- Date:Starts 26 February 2024, 14:00Ends 26 February 2024, 15:45
- Location:
- Language:Engelska
The Nobel Foundation states the following on its website:
The laureates’ experiments have produced pulses of light so short that they are measured in attoseconds, thus demonstrating that these pulses can be used to provide images of processes inside atoms and molecules.
In 1987, Anne L’Huillier discovered that many different overtones of light arose when she transmitted infrared laser light through a noble gas. Each overtone is a light wave with a given number of cycles for each cycle in the laser light. They are caused by the laser light interacting with atoms in the gas; it gives some electrons extra energy that is then emitted as light. Anne L’Huillier has continued to explore this phenomenon, laying the ground for subsequent breakthroughs.
In 2001, Pierre Agostini succeeded in producing and investigating a series of consecutive light pulses, in which each pulse lasted just 250 attoseconds. At the same time, Ferenc Krausz was working with another type of experiment, one that made it possible to isolate a single light pulse that lasted 650 attoseconds.
Doors open for the audience 13.50 - please arrive in time