Journal
OPTICS EXPRESS
Volume 17, Issue 20, Pages 17669-17677Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.17.017669
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Funding
- Director, Office of Science, Office of Basic Energy Sciences
- U. S. Department of Energy [DE-AC02-05CH11231]
- Engineering Research Centers Program of the National Science Foundation [EEC-0310717]
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To extend soft x-ray microscopy to a resolution of order 10 nm or better, we developed a new nanofabrication process for Fresnel zone plate lenses. The new process, based on the double patterning technique, has enabled us to fabricate high quality gold zone plates with 12 nm outer zones. Testing of the zone plate with the full-field transmission x-ray microscope, XM-1, in Berkeley, showed that the lens clearly resolved 12 nm lines and spaces. This result represents a significant step towards 10 nm resolution and beyond. (C) 2009 Optical Society of America
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