Canadian among trio awarded Nobel Prize in Physics

Donna Strickland, an associate professor at the University of Waterloo in Ontario, on Tuesday became the first woman in 55 years and the third ever to win the Nobel Prize in Physics, sharing it with an American scientist and another from France for their work in laser physics.

The Swedish Royal Academy of Sciences on Tuesday said half the nearly $1.29-million Cdnprizegoes to Arthur Ashkin of Bell Laboratories in New Jersey, and the other half will be shared by Strickland andGrard Mourou.

The academy saidAshkin, who isthe oldest person ever named as a laureate at 96,developed "optical tweezers" that can grab tiny particles such as viruses without damaging them.

Strickland, 59, and Mourou,74, helped develop short and intense laser pulses that have"opened up new areas of research and led to broad industrial and medical applications," it said.

3rd female laureate in physics

Strickland is the first female Nobel laureate to be named in three years and is only the third woman winning in physics: Polish-French physicistMarie Curie earned the award in 1903 and German-born Americantheoretical physicistMaria Goeppert Mayer in 1963.

"Obviously we need to celebrate women physicists, because we're out there. And hopefully in time it'll start to move forward at a faster rate, maybe," Strickland said in a phone call with the academy after the prize announcement.

How things have changed for women in science

6 years ago

Duration 1:03

Canadian Nobel laureate Donna Strickland talks about Maria Goeppert Mayer, the last woman to win a Nobel Prize in physics, in 1963

Strickland latertalked about citing GoeppertMayer's work in her own thesis, and the 1963 prize winner's lack ofa paid position in her field for many years.

"In 1939, she predicted that an atom could absorbtwo photons. Nobody had thought of that before,and It was a woman who thought of it andchanged how we do that area ofscience," Strickland said at a news conference in Waterloo.

"That's not what she won the Nobel Prize for, though, thenuclear shell [model], and yet she just followed her husband from job to job while he became professor and went up the ranks and moved to universities to do that as a chemist.

'Women have come a long way'

"And she would be allowed to teach if she wanted to, and she was allowed to have an office if she wantedto sit there and do some researchon her own, but didn'tget paid until the '50s. And yet herwork I cited was from 1939.

"Andso, obviously women have come a long way. I feel I get paid the same,and I felt like all along I'vealways been paid the same and treated the same," Strickland said.

A 2011 profile on the University of Waterloo's website said Strickland described herself as a "laser jock" who enjoyed the competitive rush, and was working on creating the shortest laser pulse with the biggest punch.

Strickland and Mourou worked together while Stricklandwas aPhDstudent at the University of Rochester in New York. Mourou was a physics professor heading research intoultra-fast lasers, and in 1985, Mourouwas lead author of a scientific paper detailing chirped pulse amplification (CPA) a technique producing ultra-short and intense laser pulses.

More powerful lasers

Their research enabled new studies of matter by allowing scientists to produce more powerful bursts of laser light, said Michael Moloney, chief executive officer of the American Institute of Physics.

While laser eye surgery is the most familiar application of their work, Moloneysaid, it has also let scientists probe fundamental forces acting within matter at very high temperatures and pressures.

"With the technique we have developed, laser power has been increased about a million times, maybe even a billion," Mourou said in a video statement released by Ecole Polytechnique.

Ashkin's work, which pinpointed a way to use lasers to manipulate tiny objects, has let scientists study how proteins operate in the body and how they interact, Moloney said.

His "tweezers" can be used to hold and manipulate proteins, DNA and other biomolecules to study their mechanical properties or stimulate them, said Erwin Peterman, a physicist at Vrije Universiteit Amsterdam, who called the award "a great recognition for this visionary scientist who was ahead of his time."

Awards still to be announced

On Monday, American James Allison and Japan's Tasuku Honjo won the Nobel Prize in Medicine for groundbreaking work in fighting cancer with the body's own immune system.

The Nobel Prize in Chemistry will be announced onWednesday, followed by the Nobel Peace Prize on Friday. The economics prize, which is not technically a Nobel, will be announced on Oct. 8.

The prizes for achievements in science, literature and peacehave been awarded since 1901 in accordance with the will ofSwedish business tycoon Alfred Nobel, whose discovery ofdynamite generated a vast fortune used to fund the prize.

However, for the first time in decades, no Nobel Prize inLiterature will be given this year after a scandal over sexual misconduct allegations saw a string of members leave the boardof the Swedish Academy that awards it.

With files from CBC News and Reuters