Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook
More News

DoE Labs Demonstrate Free-Electron Laser

Facebook Twitter LinkedIn Email Comments
Scientists from the US Department of Energy's (DoE) Brookhaven National Laboratory in Upton, N.Y., and Argonne National Laboratory in Argonne, Ill., have demonstrated a high-gain harmonic-generation free-electron laser. They hope it will lead to the development of hard x-ray lasers. The proof-of-principle experiment, which was described in the Aug. 11 issue of Science, seeded the free-electron laser at Brookhaven with a 200-ps, 10.6-µm pulse from a 0.5-MW CO2 laser.

The seed pulse interacted in the first undulator section with a 40-MeV electron beam, producing an energy modulation. A dispersion magnet converted the energy modulation into a coherent spatial density modulation, which produced coherent 5.3-µm light in a second undulator.

The researchers plan to use a Ti:sapphire laser at the 266-nm third harmonic to seed the device and produce vacuum-UV light. Further experiments may use more gain stages to boost output into the x-ray region.

Photonics Spectra
Oct 2000
Research & TechnologyTech Pulselasers

back to top
Facebook Twitter Instagram LinkedIn YouTube RSS
©2019 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA,

Photonics Media, Laurin Publishing
x Subscribe to Photonics Spectra magazine - FREE!
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.