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Image: The waveguide as it appears within the femtosecond laser amplifier system. The waveguide is a hollow glass tube with internal humps that coax light waves into traveling along at the same speed and help the waves reinforce each other. [See related images: Research Associates with Laser System, Close-Up of Waveguide, Schematic of the Waveguide, Femtosecond Laser Amplifier System.]<BR> <BR> <U><B>More about this Image</B></U><BR> A National Science Foundation (NSF) supported research team from the University of Colorado’s Joint Institute for Laboratory Astrophysics (JILA), have created an extreme-ultraviolet, laser-like beam capable of producing tightly-focused light in a region of the electromagnetic spectrum not previously accessible to scientists. The process combines concepts from electromagnetic radiation research and fiber optics.<BR> <BR> The extreme-ultraviolet (EUV) wavelengths, which are between 1 and 100 times shorter than visible light waves, will allow researchers to “see” tiny features and carve miniature patterns with applications in such fields as microscopy, lithography, and nanotechnology.<BR> <BR> The achievement is based on a new structure called a “waveguide,” a hollow glass tube with internal humps that coax light waves into traveling along at the same speed and help the waves reinforce each other.<BR> <BR> These findings were reported in the January 2 issue of the journal <I>Nature</I>. The research was principally supported by NSF, with additional funds from the Department of Energy. For further information about the research, see <a href=NSF Press Release 03-01. Thumbnail">

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