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Sub-nanograin metal based high efficiency multilayer reflective optics for high energies
The present finding illuminates the physics of the formation of interfaces of metal based hetero-structures near layer continuous limit as an approach to develop high-efficiency W/B(4)C multilayer (ML) optics with ML periodicity varying d = 1.86–1.23 nm at a fixed number of layer pairs N = 400. The...
Autores principales: | , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038047/ https://www.ncbi.nlm.nih.gov/pubmed/35480750 http://dx.doi.org/10.1039/d1ra04412e |
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author | Majhi, Arindam Nayak, Maheswar Pradhan, Paresh Chandra Jena, Suvendu Gome, Anil Singh, Manvendra Narayan Srivastava, Himanshu Reddy, Varimalla Raghvendra Srivastava, Arvind Kumar Sinha, Anil Kumar Udupa, Dinesh Venkatesh Pietsch, Ullrich |
author_facet | Majhi, Arindam Nayak, Maheswar Pradhan, Paresh Chandra Jena, Suvendu Gome, Anil Singh, Manvendra Narayan Srivastava, Himanshu Reddy, Varimalla Raghvendra Srivastava, Arvind Kumar Sinha, Anil Kumar Udupa, Dinesh Venkatesh Pietsch, Ullrich |
author_sort | Majhi, Arindam |
collection | PubMed |
description | The present finding illuminates the physics of the formation of interfaces of metal based hetero-structures near layer continuous limit as an approach to develop high-efficiency W/B(4)C multilayer (ML) optics with ML periodicity varying d = 1.86–1.23 nm at a fixed number of layer pairs N = 400. The microstructure of metal layers is tailored near the onset of grain growth to control the surface density of grains resulting in small average sizes of grains to sub-nanometers. This generates concurrently desirable atomically sharp interfaces, high optical contrast, and desirable stress properties over a large number of periods, which have evidence through the developed ML optics. We demonstrate significantly high reflectivities of ML optics measured in the energy range 10–20 keV, except for d = 1.23 nm due to quasi-continuous layers. The reflectivities at soft gamma-rays are predicted. |
format | Online Article Text |
id | pubmed-9038047 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90380472022-04-26 Sub-nanograin metal based high efficiency multilayer reflective optics for high energies Majhi, Arindam Nayak, Maheswar Pradhan, Paresh Chandra Jena, Suvendu Gome, Anil Singh, Manvendra Narayan Srivastava, Himanshu Reddy, Varimalla Raghvendra Srivastava, Arvind Kumar Sinha, Anil Kumar Udupa, Dinesh Venkatesh Pietsch, Ullrich RSC Adv Chemistry The present finding illuminates the physics of the formation of interfaces of metal based hetero-structures near layer continuous limit as an approach to develop high-efficiency W/B(4)C multilayer (ML) optics with ML periodicity varying d = 1.86–1.23 nm at a fixed number of layer pairs N = 400. The microstructure of metal layers is tailored near the onset of grain growth to control the surface density of grains resulting in small average sizes of grains to sub-nanometers. This generates concurrently desirable atomically sharp interfaces, high optical contrast, and desirable stress properties over a large number of periods, which have evidence through the developed ML optics. We demonstrate significantly high reflectivities of ML optics measured in the energy range 10–20 keV, except for d = 1.23 nm due to quasi-continuous layers. The reflectivities at soft gamma-rays are predicted. The Royal Society of Chemistry 2021-08-19 /pmc/articles/PMC9038047/ /pubmed/35480750 http://dx.doi.org/10.1039/d1ra04412e Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Majhi, Arindam Nayak, Maheswar Pradhan, Paresh Chandra Jena, Suvendu Gome, Anil Singh, Manvendra Narayan Srivastava, Himanshu Reddy, Varimalla Raghvendra Srivastava, Arvind Kumar Sinha, Anil Kumar Udupa, Dinesh Venkatesh Pietsch, Ullrich Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title | Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title_full | Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title_fullStr | Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title_full_unstemmed | Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title_short | Sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
title_sort | sub-nanograin metal based high efficiency multilayer reflective optics for high energies |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9038047/ https://www.ncbi.nlm.nih.gov/pubmed/35480750 http://dx.doi.org/10.1039/d1ra04412e |
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