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For half a century, scientists have been trying to figure out howto build a cost-effective and reasonably sized X-ray laser thatcould, among other things, provide super-high-resolution imaging,according to Henry Kapteyn, a CU-Boulder physics professor andfellow at JILA, a joint institute of CU-Boulder and the NationalInstitute of Standards and Technology. Such a device also could beused by scientists to peer into a single cell or chemical reactionto gain a better understanding of the nanoworld. Most of today's X-ray lasers require so much power that they relyon facilities the size of football stadiums or larger, making theiruse impractical. To avoid the need for a large energy source topower an X-ray laser, the CU-Boulder researchers have created atabletop device that uses atoms in a gas to efficiently combinemore than 5,000 low-energy mid-infrared laser photons to generateeach high-energy X-ray photon, said Margaret Murnane, a CU-Boulderphysics professor and JILA fellow who is co-leading the researchefforts. "Because X-ray wavelengths are 1,000 times shorter thanvisible light and they penetrate materials, these coherent X-raybeams promise revolutionary new capabilities for understanding andcontrolling how the nanoworld works on its fundamental time andlength scales," Murnane said. "Understanding thenanoworld is needed to design and optimize next-generationelectronics, data and energy storage devices and medicaldiagnostics." The findings will appear June 8 in the journal Science. The tabletop device -- an X-ray tube in the soft X-ray region --produces a bright, directed beam of X-rays by ensuring that all ofthe atoms in a multi-atmosphere pressure gas emit X-rays, accordingto Kapteyn. "As an added advantage, the X-rays emerge as very short burstsof light that can capture the fastest processes in our physicalworld, including imaging the motions of electrons," Kapteynsaid. Laser beams, which are visible light, represent one of the bestways to concentrate energy and have been a huge benefit to societyby enabling the Internet, DVD players, laser surgery and a host ofother uses. "However, the same revolution that happened for visible lightsources that made it possible to create laser-like beams of lightfor widespread use instead of multidirectional light from a lightbulb, is only now happening for X-rays," Kapteyn said. Co-authors on the paper were Tenio Popmintchev, Ming-Chang Chen,Dimitar Popmintchev, Paul Arpin, Susannah Brown, Andreas Becker andAgnieszka Jaron-Becker of CU-Boulder; Skirmantas Alisauskas,Giedrius Andriukaitis, Tadas Balciunas, Oliver Mucke, AudriusPugzlys and Andrius Baltuska of the Vienna University of Technologyin Vienna; Bonggu Shim, Samuel E. Schrauth and Alexander Gaeta ofCornell University; and Carlos Hernandez-Garcia and Luis Plaja ofthe Universidad de Salamanca in Salamanca, Spain. The e-commerce company in China offers quality products such as China Skin Rejuvenation Machine , E-Light Laser Hair Removal Manufacturer, and more. For more , please visit E-Light Laser Hair Removal today!
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