Search
Menu
Gentec Electro-Optics Inc   - Measure With Gentec Accuracy LB

Attosecond Method Captures Electron Movements

Facebook X LinkedIn Email
A group of scientists at Technische Universität Wien in Austria, Universität Bielefeld in Germany and Max Planck Institut für Quantenoptik in Garching, Germany, has used ultrashort pulses of soft x-rays and laser light to investigate atomic electron dynamics on the scale of the Bohr orbit time -- approximately 150 attoseconds. The team reported the work in the Feb. 26 issue of Nature.

The researchers' experimental setup, which they call an atomic transient recorder, comprises a source of 250-attosecond pulses of 93-eV x-rays, a source of 5-fs pulses of 750-nm laser light, and a streak camera that they modified for the experiment. The x-rays excite a neon target to emit photoelectrons, which are probed with the linearly polarized laser to yield maps of their momentum distributions.

The scientists calculate that the current setup can resolve events that occur 100 attoseconds apart, and they suggest that the approach will enable time-domain metrology studies down to a resolution of 24 attoseconds -- the atomic unit of time.
Rocky Mountain Instruments - Infrared Optics MR

Published: April 2004
Glossary
metrology
Metrology is the science and practice of measurement. It encompasses the theoretical and practical aspects of measurement, including the development of measurement standards, techniques, and instruments, as well as the application of measurement principles in various fields. The primary objectives of metrology are to ensure accuracy, reliability, and consistency in measurements and to establish traceability to recognized standards. Metrology plays a crucial role in science, industry,...
As We Go To Pressatomic electron dynamicsBasic ScienceBreaking Newslaser lightMax Planck Institut fümetrologyPresstime Bulletinr Quantenoptiksoft x-rayst Bielefeldt WienTechnische UniversitäUniversitäLasers

We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.