Featured Research

from universities, journals, and other organizations

Intense two-color double X-ray laser pulses: Powerful tool to study ultrafast processes

Date:
December 4, 2013
Source:
RIKEN
Summary:
Scientists have generated ultra-bright, two-color X-ray laser pulses for the first time in the hard X-ray region. These light pulses with different wavelengths, whose time separation can be adjusted with attosecond accuracy, are very powerful tools to investigate the structure of matter and the dynamics of ultrafast physical processes and chemical reactions.

A team working at the SACLA X-ray Free-Electron Laser in Japan has succeeded in generating ultra-bright, two-color X-ray laser pulses, for the first time in the hard X-ray region. These light pulses with different wavelengths, whose time separation can be adjusted with attosecond accuracy, are very powerful tools to investigate the structure of matter and the dynamics of ultrafast physical processes and chemical reactions.
Credit: RIKEN

A team working at the SACLA X-ray Free-Electron Laser (XFEL) in Japan has succeeded in generating ultra-bright, two-color X-ray laser pulses, for the first time in the hard X-ray region. These light pulses with different wavelengths, whose time separation can be adjusted with attosecond accuracy, are very powerful tools to investigate the structure of matter and the dynamics of ultrafast physical processes and chemical reactions.

Related Articles


SACLA is one of only two facilities in the world to offer XFEL as light source to investigate matter, with various applications in biology, chemistry, physics and materials science. XFELs have the capacity to deliver radiation ten billion times brighter and with pulses one thousand times shorter than existing synchrotron X-ray radiation sources. Until now, XFELs have normally emitted one radiation pulse at a single wavelength like conventional visible lasers.

The Japanese team led by Toru Hara of the RIKEN SPring-8 Center, reports today in the journal Nature Communications that they have succeeded in creating double X-ray pulses with tunable wavelengths that can be relatively separated by more than 30%. This was achieved using variable-gap undulators, that act as a radiator and whose resonant wavelength can be largely varied by changing the magnetic field strength.

"The relative separation we have achieved is ten times bigger than what had been achieved in the past, and will make two-color lasers much easier to use as a light source. In addition, the two-color pulses can be emitted on different axes to spatially separate them. Our achievement significantly ameliorates the usability of XFEL," explains Dr Hara.

The laser pulses, that last for less than 10 femtoseconds (10−15 s) and have peak powers of a few giga-watts, can be generated with time intervals adjusted with attosecond (10-16 s) precision.

"This will enable us to elucidate X-ray-induced ultrafast transitions of electronic states and structures, which will significantly contribute to the advancement of ultrafast chemistry, plasma physics and astrophysics, and X-ray quantum optics," conclude the authors.


Story Source:

The above story is based on materials provided by RIKEN. Note: Materials may be edited for content and length.


Journal Reference:

  1. Toru Hara, Yuichi Inubushi, Tetsuo Katayama, Takahiro Sato, Hitoshi Tanaka, Takashi Tanaka, Tadashi Togashi, Kazuaki Togawa, Kensuke Tono, Makina Yabashi, Tetsuya Ishikawa. Two-colour hard X-ray free-electron laser with wide tunability. Nature Communications, 2013; 4 DOI: 10.1038/ncomms3919

Cite This Page:

RIKEN. "Intense two-color double X-ray laser pulses: Powerful tool to study ultrafast processes." ScienceDaily. ScienceDaily, 4 December 2013. <www.sciencedaily.com/releases/2013/12/131204090946.htm>.
RIKEN. (2013, December 4). Intense two-color double X-ray laser pulses: Powerful tool to study ultrafast processes. ScienceDaily. Retrieved December 18, 2014 from www.sciencedaily.com/releases/2013/12/131204090946.htm
RIKEN. "Intense two-color double X-ray laser pulses: Powerful tool to study ultrafast processes." ScienceDaily. www.sciencedaily.com/releases/2013/12/131204090946.htm (accessed December 18, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Thursday, December 18, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Navy Unveils Robot Fish

Navy Unveils Robot Fish

Reuters - Light News Video Online (Dec. 18, 2014) The U.S. Navy unveils an underwater device that mimics the movement of a fish. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
3D Printed Cookies Just in Time for Christmas

3D Printed Cookies Just in Time for Christmas

Reuters - Innovations Video Online (Dec. 18, 2014) A tech company in Spain have combined technology with cuisine to develop the 'Foodini', a 3D printer designed to print the perfect cookie for Santa. Ben Gruber reports. Video provided by Reuters
Powered by NewsLook.com
First Etihad Superjumbo Flight in December

First Etihad Superjumbo Flight in December

AFP (Dec. 18, 2014) The first flight of Etihad Airways' long-awaited Airbus A380 superjumbo will take place later in December, the Abu Dhabi carrier said Thursday, also announcing its first Boeing 787 Dreamliner route. Duration: 01:09 Video provided by AFP
Powered by NewsLook.com
Ford Expands Air Bag Recall Nationwide

Ford Expands Air Bag Recall Nationwide

Newsy (Dec. 18, 2014) The automaker added 447,000 vehicles to its recall list, bringing the total to more than 502,000. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins