Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Jefferson Lab’s Upgraded Free-Electron Laser Produces First Light

03.07.2003


A view inside JLab’s Free-Electron Laser vault, showing the upgraded linear accelerator on the right and the infrared wiggler magnet on the left.


Researchers at the U.S. Department of Energy’s Thomas Jefferson National Accelerator Facility have produced first light from their 10 kilowatt Free-Electron Laser (FEL). This device has been upgraded from the "one kilowatt Infrared Demonstration" FEL, which broke power records by delivering 2,100 watts of infrared light during 2001. Only one and one-half years after the one kilowatt FEL was dismantled, the newly improved FEL, designed to produce 10 kilowatts of infrared and one kilowatt of ultraviolet light, is undergoing commissioning toward the goal of producing 10 kilowatts by summer’s end.

According to Rear Admiral Jay Cohen, Chief of Naval Research, "This project builds on the successful seven-year partnership forged between the Office of Science’s Jefferson Lab and the Office of Naval Research. The original kilowatt FEL exceeded the Navy’s goals and expectations and we expect no less from the upgraded FEL."

The Free-Electron Laser upgrade project is funded by the Department of Defense’s Office of Naval Research (ONR), Air Force Research Laboratory and the Joint Technology Office. Jefferson Lab is managed for the Department of Energy’s Office of Science by a consortium of universities in the southeast called the Southeastern Universities Research Association.



To enable experimenters to probe deep inside the atom’s nucleus with electrons, Jefferson Lab pioneered superconducting technology for accelerating electrons to high energy in efficient, cost-effective accelerators. Jefferson Lab’s superconducting electron-accelerating technology offers two commanding cost advantages for FELs: the laser can stay on 100% of the time instead of only 1% or 2%, and more than 90% of the energy that is not converted to useful light in a single pass can be recycled.

The Navy’s interest in this technology is the development and demonstration of an electrically driven tunable laser that can operate at infrared wavelengths where light is most efficiently transmitted in the atmosphere for potential applications toward shipboard defense.

During the two and one-half years the so-called one-kilowatt FEL operated, it broke all existing power records for tunable high-average power lasers. It was used by more than 30 different research groups representing the Navy, NASA, universities and industry for a variety of applications ranging from the investigation of new cost-effective methods for producing carbon nanotubes and understanding the dynamics of hydrogen defects in silicon to investigating how proteins transport energy. These research groups are eagerly awaiting the newly upgraded FEL and are making plans for its use.


For additional information, contact Thomas Jefferson National Accelerator Facility (Jefferson Lab), Newport News, Virginia or the Office of Naval Research:


Linda Ware (ware@jlab.org)
Jefferson Lab Public Affairs Manager
(757) 269-7689 (fax: 7398)
Gail Cleere, (cleereg@onr.navy.mil)
ONR Public Affairs Officer
(703) 696-4987

Linda Ware | TJNAF
Further information:
http://www.jlab.org/news/archive/2003/firstlight.html

More articles from Physics and Astronomy:

nachricht Further Improvement of Qubit Lifetime for Quantum Computers
09.12.2016 | Forschungszentrum Jülich

nachricht Electron highway inside crystal
09.12.2016 | Julius-Maximilians-Universität Würzburg

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>