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Science 12 July 2002:
Vol. 297. no. 5579, pp. 205 - 206
DOI: 10.1126/science.1073847
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Perspectives

APPLIED PHYSICS:
Squeezing X-ray Photons

Till H. Metzger

Nanometer-scale beams of coherent x-rays could provide valuable information about the structure and dynamics of nanoscale objects. But x-rays have proven difficult to control, hampering efforts to create such beams. In his Perspective, Metzger highlights the report by Pfeiffer et al., who have created a proof-of-principle two-dimensional waveguide for hard x-rays. The work is a first step toward coherent x-ray nanobeams.

The author is at the European Synchrotron Radiation Facility, 38043 Grenoble, France. E-mail: metzger{at}esrf.fr

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Science. ISSN 0036-8075 (print), 1095-9203 (online)