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Showing 1 to 7 of 7 for “"refractive lenses"”.
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Hard x-ray microanalysis with parabolic refractive lenses
… in the hard X-ray range based on parabolic refractive lenses. Obviously, refractive lenses for visible light are most successful. But the weak refraction and strong absorption of hard X-rays in matter make the realization of refractive lenses difficult. Highly brilliant X-ray sources and …
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Nanofocusing Refractive X-Ray Lenses
… development of the production of nanofocusing refractive x-ray lenses. These optics made of either silicon or diamond are well-suited for high resolution x-ray microscopy. The goal of this work is the design of a reproducible manufacturing process which allows the production of silicon lenses …
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Element specific X-ray fluorescene microtomography
… in this work. Employing the newly developed refractive x-ray lenses at a third generation synchrotron source the spatial resolution of this technique could be reduce to a micrometer. The fluorescence radiation that leaves the sample and can be detected from outside suffers absorption on its …
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Imaging with parabolic refractive X-ray lenses
… visible light in glass it is about n = 1.5 . The refractive index of x-ray radiation is specified in the form n = 1 - delta + i beta, where the decrement delta is of the order of 10^(-6), the absorptive component beta being typically one or two orders of magnitude smaller. After an introduction, …
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Flat optics based on patterned nanostructures for concentrating light
… concentrators are often based on the use of refractive lenses or reflective focusing optics, all of which are either too bulky and cumbersome to be incorporated into portable devices or inconveniently large and heavy to be maintained at a relatively low cost. To achieve development of a …
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Development of nanofocusing refractive X-ray lenses
… microfabrication process of silicon nanofocusing lenses is optimised. With these lenses a lateral resolution of 50 nm was achieved and this resolution approaches the theoretical limit. Using the same process for the fabrication of silicon adiabatically focusing lenses (AFL) a lateral resolution of …