{"title":"New Version of the Theory of the Nanofocusing of Hard Synchrotron-Radiation Beams by a Long Compound Refractive Lens","authors":"V. G. Kohn","doi":"10.1134/S2635167624602638","DOIUrl":null,"url":null,"abstract":"<p>A new version of the theory of the nanofocusing of synchrotron radiation (SR) into nanometer transverse size using a long compound refractive lens (CRL) is developed, which adequately takes into account the aperture over the entire length of the CRL within the framework of geometrical optics, fully compatible with the theory based on the CRL propagator. For hard SR, absorption no longer completely limits the CRL aperture and taking into account the real aperture is important to obtain reliable information about the size of the SR beam at the focus. The new theory is almost analytical and allows one to determine the rocking curve of a long CRL with good accuracy, and also gives an answer in those exotic cases where standard numerical methods are not applicable.</p>","PeriodicalId":716,"journal":{"name":"Nanotechnologies in Russia","volume":"20 2","pages":"248 - 254"},"PeriodicalIF":0.8000,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nanotechnologies in Russia","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S2635167624602638","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Engineering","Score":null,"Total":0}
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Abstract
A new version of the theory of the nanofocusing of synchrotron radiation (SR) into nanometer transverse size using a long compound refractive lens (CRL) is developed, which adequately takes into account the aperture over the entire length of the CRL within the framework of geometrical optics, fully compatible with the theory based on the CRL propagator. For hard SR, absorption no longer completely limits the CRL aperture and taking into account the real aperture is important to obtain reliable information about the size of the SR beam at the focus. The new theory is almost analytical and allows one to determine the rocking curve of a long CRL with good accuracy, and also gives an answer in those exotic cases where standard numerical methods are not applicable.
期刊介绍：
Nanobiotechnology Reports publishes interdisciplinary research articles on fundamental aspects of the structure and properties of nanoscale objects and nanomaterials, polymeric and bioorganic molecules, and supramolecular and biohybrid complexes, as well as articles that discuss technologies for their preparation and processing, and practical implementation of products, devices, and nature-like systems based on them. The journal publishes original articles and reviews that meet the highest scientific quality standards in the following areas of science and technology studies: self-organizing structures and nanoassemblies; nanostructures, including nanotubes; functional and structural nanomaterials; polymeric, bioorganic, and hybrid nanomaterials; devices and products based on nanomaterials and nanotechnology; nanobiology and genetics, and omics technologies; nanobiomedicine and nanopharmaceutics; nanoelectronics and neuromorphic computing systems; neurocognitive systems and technologies; nanophotonics; natural science methods in a study of cultural heritage items; metrology, standardization, and monitoring in nanotechnology.
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