Contact: Josh Chamot
National Science Foundation
Caption: This image depicts the experimental setup used to create a coherent version of the Roentgen tube in the soft X-ray region of the spectrum. When a long-wavelength, femtosecond laser is focused into this hollow waveguide filled with high-pressure helium gas, part of the laser is converted into an ultrafast, laser-like, X-ray beam.
Credit: Tenio Popmintchev, JILA and University of Colorado at Boulder
Usage Restrictions: Credit must be used.
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