KINOFORM LENSES - TOWARD NANOMETER RESOLUTION.

Conference · Sat Oct 23 04:00:00 EDT 2004

OSTI ID:860506

STEIN, A; EVANS-LUTTERODT, K; TAYLOR, A

While hard x-rays have wavelengths in the nanometer and sub-nanometer range, the ability to focus them is limited by the quality of sources and optics, and not by the wavelength. A few options, including reflective (mirrors), diffractive (zone plates) and refractive (CRL's) are available, each with their own limitations. Here we present our work with kinoform lenses which are refractive lenses with all material causing redundant 2{pi} phase shifts removed to reduce the absorption problems inherently limiting the resolution of refractive lenses. By stacking kinoform lenses together, the effective numerical aperture, and thus the focusing resolution, can be increased. The present status of kinoform lens fabrication and testing at Brookhaven is presented as well as future plans toward achieving nanometer resolution.

• Research Organization: BROOKHAVEN NATIONAL LABORATORY
• Sponsoring Organization: DOE/SC
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 860506
• Report Number(s): BNL--75089-2005-CP; KA04004
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ABSORPTION
FABRICATION
FOCUSING
LENSES
MIRRORS
NANOSTRUCTURES
OPTICS
PHASE SHIFT
PLATES
RESOLUTION
TESTING
WAVELENGTHS
X RADIATION