Scientists obtain ground-breaking measurements using infrared light

Jul 01, 2013 by Mark Ferguson

( —Scientists at the Canadian Light Source (CLS) have obtained high-resolution measurements in the infrared spectrum that could change the way research is conducted using synchrotron light.

CLS Spectroscopist Brant Billinghurst said he and his colleagues were working on methods to produce intense (at the far end of the ) while conducting research on the Far-IR beamline, an experimental station at the CLS.

The research was recently published under the name "Observation of superradiant radiation in the terahertz region" in Physical Review Special Topics - Accelerators and Beams.

Billinghurst said they tried something unusual with the synchrotron that allowed them the first time to make a high-resolution measurement of superradiant .

"For this technique to work, you need a synchrotron, electrons in small bunches, and stable beam. So, it's very specific," said Billinghurst.

Unlike the high-energy photons needed for experiments using X-rays, the techniques used in the infrared region benefit from turning the synchrotron energy way down, to 1.5 GeV, making it possible for the technique to work.

Billinghurst pointed out that the idea for synchrotron superradiance appears in a definitive textbook, Classical Electrodynamics, by physicist John David Jackson, in 1962, but that no one had actually reported high-resolution results until now.

These findings have some interesting implications and could allow for spectroscopy in the Terahertz region at higher resolution than is currently feasible. This discovery could have implications for research at synchrotrons around the world. However, there are a number of technical issues that would have to be solved before this would be possible, said Billighurst.

The infrared spectrum is used for a number of experiments at the CLS, including better understanding of the materials that compose the universe.

Explore further: First in-situ images of void collapse in explosives

More information: Physical Review Special Topics:

add to favorites email to friend print save as pdf

Related Stories

Scientists develop cheaper, more efficient fuel cells

May 23, 2013

( —Using the Canadian Light Source (CLS) synchrotron, researchers have discovered a way to create cheaper fuel cells by dividing normally expensive platinum metal into nanoparticles (or even single ...

British and Canadian synchrotrons sign agreement

May 31, 2011

Making the power of synchrotron light available to more businesses, building new experimental equipment and developing new capabilities are three of the areas of collaboration in a trans-Atlantic memorandum of understanding ...

Recommended for you

First in-situ images of void collapse in explosives

22 hours ago

While creating the first-ever images of explosives using an x-ray free electron laser in California, Los Alamos researchers and collaborators demonstrated a crucial diagnostic for studying how voids affect ...

New approach to form non-equilibrium structures

Jul 24, 2014

Although most natural and synthetic processes prefer to settle into equilibrium—a state of unchanging balance without potential or energy—it is within the realm of non-equilibrium conditions where new possibilities lie. ...

Nike krypton laser achieves spot in Guinness World Records

Jul 24, 2014

A set of experiments conducted on the Nike krypton fluoride (KrF) laser at the U.S. Naval Research Laboratory (NRL) nearly five years ago has, at long last, earned the coveted Guinness World Records title for achieving "Highest ...

User comments : 0