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“Swiss Nobel Prize” for Ursula Keller

Date Announced: 15 Sep 2022

 
Ursula Keller in her laboratory
Ursula Keller, right, has received the Swiss Science Prize Marcel Benoist for her pioneering work in ultrafast lasers. 
(Image: Heidi Hostettler)
 

Zurich, Switzerland -- Physics professor Ursula Keller has received the Swiss Science Prize Marcel Benoist for her pioneering work in ultrafast lasers. Her theoretical models and experimental discoveries have repeatedly tested the boundaries of ultrafast laser physics.

Ever since the laser was invented, scientists have been keen to use the technology – to transform materials, for example. Unfortunately this was not possible with continuous-​wave lasers, as they were too imprecise, and unsuitable for heat-​sensitive materials. The eventual solution was to use a pulsed laser beam, although this required more complex technology. ETH Professor Ursula Keller solved the problem by using semiconductors, and in 1991 invented SESAM technology (Semiconductor Saturable Absorber Mirror).

Contact

ETH Zurich

Rämistrasse 101

8092 Zurich
Switzerland

 
 

E-mail: nkalas@phys.ethz.ch

Web Site: https://ethz.ch/en.html

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