NSF -OLPA - PR 02-60: LASER-LIKE BEAM MAY BREAK BARRIERS TO TECHNOLOGICAL PROGRESS Images



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NSF Press Release

Embargoed until 2 p.m. EDT
NSF PR 02-60 - July 18, 2002

Note About Images

Photo 1

a visible light pulse lasting only quadrillionths of a second is fired into a gas; caption is below

In high harmonic generation (HHG), a visible light pulse lasting only quadrillionths of a second is fired into a gas, ionizing the gas and causing the ions to oscillate. The result is a high-energy EUV laser beam, but it is not finely-focused.
Photo credit: Margaret Murnane and Henry Kapteyn, JILA at the University of Colorado.

Photo 2

diagram of EUV beam setup; caption is below

To create an EUV source that is more focused and requires less space than existing EUV lasers, the JILA team developed a tabletop setup that fires a shorter-pulse, visible light wavelength laser into a structured waveguide - a small, Argon gas-filled fiber. The waveguide helps control the HHG process, yielding an EUV beam that is more finely focused than other EUV sources - yet with less power per pulse. This EUV beam setup can be used to create simple holograms.
Photo credit: Readers may view, browse, and/or download this image for temporary copying purposes only, provided these uses are for noncommercial personal purposes. Except as provided by law, this image may not be further reproduced, distributed, transmitted, modified, adapted, performed, displayed, published, or sold in whole or in part, without prior written permission from Science. Copyright 2002 American Association for the Advancement of Science. http://www.sciencemag.org
Reprinted with permission from Bartels et al., Generation of Spatially Coherent Light at Extreme Ultraviolet Wavelengths, Science, July 19, 2002.

Photo 3

The entire system for creating EUV beams in the JILA lab; caption is below

The entire system for creating EUV beams in the JILA lab fits within a space of less than two square meters - in this iteration, the setup is configured for creating holograms.
Photo credit: Margaret Murnane and Henry Kapteyn, JILA at the University of Colorado.
Select image for larger version (Size: 31KB) or download high resolution TIF file (5.5 MB)

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