Ashkin发明了光学镊子，用激光束手指抓住粒子，原子，病毒和其他活细胞。这个新工具让Ashkin实现了科幻小说的旧梦 - 利用光的辐射压力来移动物体。根据声明，他成功地获得了激光，将小颗粒推向光束的中心并将它们固定在那里。
“今年的发现是关于制造强脉冲，还有短脉冲。它们非常短，以至于我们可以前所未有地计时。这是目前研究的一个重要领域。许多科学家正试图弄清楚我们该如何做如果你能做到这一点，你可以学到更多关于许多基本过程的知识，例如，化学反应，它们是如何开始的。自从我们了解它们是如何发生的，我们就能够引导它(过程) )，我们可以利用我们的知识来设计将要发生的事情。“ 瑞典皇家科学院物理课程成员Eva Lindroth在公告后接受新华社记者采访时说。
Half of the award "for groundbreaking inventions in the field of laser physics" went to American Arthur Ashkin and the other half was awarded jointly to Frenchman Gerard Mourou and Canadian Donna Strickland.
Strickland said in a telephone interview with the academy at a press conference that she was happy and surprised to be receiving the prize, which she looked forward to accepting in Stockholm in December.
Commenting on her achievements, she emphasized how she "tries to think outside of the box."
The inventions being honoured this year have revolutionized laser physics. Extremely small objects and incredibly rapid processes are now being seen in a new light. Advanced precision instruments are opening up unexplored areas of research and a multitude of industrial and medical applications, according to a statement released by The Royal Swedish Academy of Sciences.
Ashkin invented optical tweezers that grab particles, atoms, viruses and other living cells with their laser beam fingers. This new tool allowed Ashkin to realize an old dream of science fiction -- using the radiation pressure of light to move physical objects. He succeeded in getting laser light to push small particles towards the center of the beam and to hold them there, according to the statement.
A major breakthrough came in 1987, when Ashkin used the tweezers to capture living bacteria without harming them. He immediately began studying biological systems, and optical tweezers are now widely used to investigate the machinery of life, the statement added.
Mourou and Strickland paved the way towards the shortest and most intense laser pulses ever created by mankind. Their revolutionary article was published in 1985 and was the foundation of Strickland's doctoral thesis.
Using an ingenious approach, they succeeded in creating ultra-short, high-intensity laser pulses without destroying the amplifying material. First they stretched the laser pulses in time to reduce their peak power, then amplified them, and finally compressed them. If a pulse is compressed in time and becomes shorter, then more light is packed together in the same tiny space and the intensity of the pulse increases dramatically.
Strickland and Mourou's invented technique, called chirped pulse amplification (CPA) soon became standard for subsequent high-intensity lasers. Its uses include the millions of corrective eye surgeries that are conducted every year using the sharpest of laser beams.
The statement said there are still innumerable areas of application that have not yet been completely explored.
"This year's discovery is about making strong pulses, but also short pulses. They are so short that we can time them as never before. This is a big area of research at the moment. Many scientists are trying to figure out how can we do this, and if you can do that, you can learn a lot more about many basic processes, of for example, the chemical reactions, how they started. Since we get to know how they happened, we are able to steer it (the process), and we can use our knowledge to design what is going to happen." Eva Lindroth, member of the Class for Physics at The Royal Swedish Academy of Sciences, told Xinhua in an interview after the announcement.
"I think it's really nice that Donna Strickland, as a female scientist, got the Prize this year. It's also important to know that she got this for her doctoral thesis work, so it's a good signal to young people, that you can do something very important very early in your career," Lindroth emphasized.
"I hope more female scientists to win Noble science prizes in future. There are more and more women scientists, so I think it (male dominance) will change, and more female scientists are leading research groups, playing a bigger role, these are also important," Lindroth added.
This year's prize is 9 million Swedish krona (about 1 million U.S. dollars).