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CU physicists use ultra-fast lasers to open doors to new technologies unheard of just years ago
Date:2/21/2010

For nearly half a century, scientists have been trying to figure out how to build a cost-effective and reasonably sized X-ray laser that could, among other things, provide super high-resolution imaging. And for the past two decades, University of Colorado at Boulder physics professors Margaret Murnane and Henry Kapteyn have been inching closer to that goal.

Recent breakthroughs by their team at JILA, a joint institute of CU-Boulder and the National Institute of Standards and Technology, have paved the way on how to build a tabletop X-ray laser that could be used for super high-resolution imaging, while also giving scientists a new way to peer into a single cell and gain a better understanding of the nanoworld.

Both of these feats could lead to major breakthroughs in many fields including medicine, biology and nanotechnology development.

"Our goal is to create a laser beam that contains a broad range of X-ray wavelengths all at once that can be focused both in time and space," Murnane said. "If we have this source of coherent light that spans a huge region of the electromagnetic spectrum, we would be able to make the highest resolution light-based tabletop microscope in existence that could capture images in 3-D and tell us exactly what we are looking at. We're very close."

Murnane and Kapteyn presented highlights of their research today at the American Association for the Advancement of Science, or AAAS, annual meeting in San Diego, during a panel discussion about the history and future of laser technology titled "Next Generation of Extreme Optical Tools and Applications."

Most of today's X-ray lasers require so much power that they rely on fusion laser facilities the size of football stadiums or larger, making their use impractical. Murnane and Kapteyn generate coherent laser-like X-ray beams by using an intense femtosecond laser and combining hundreds or thousands of visible photons together. And the key is they ar
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Contact: Margaret Murnane
murnane@jila.colorado.edu
303-492-7839
University of Colorado at Boulder
Source:Eurekalert

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