Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator
Copyright © 2020 American Chemical Society. We present a novel design for an ultracompact, passive light source capable of generating ultraviolet and X-ray radiation, based on the interaction of free electrons with the magnetic near-field of a ferromagnet. Our design is motivated by recent advances...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Chemical Society (ACS)
2021
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| Online Access: | https://hdl.handle.net/1721.1/132372 |
| _version_ | 1826211456017760256 |
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| author | Fisher, Sophie Roques-Carmes, Charles Rivera, Nicholas Wong, Liang Jie Kaminer, Ido Soljačić, Marin |
| author_facet | Fisher, Sophie Roques-Carmes, Charles Rivera, Nicholas Wong, Liang Jie Kaminer, Ido Soljačić, Marin |
| author_sort | Fisher, Sophie |
| collection | MIT |
| description | Copyright © 2020 American Chemical Society. We present a novel design for an ultracompact, passive light source capable of generating ultraviolet and X-ray radiation, based on the interaction of free electrons with the magnetic near-field of a ferromagnet. Our design is motivated by recent advances in the fabrication of nanostructures, which allow the confinement of large magnetic fields at the surface of ferromagnetic nanogratings. Using ab initio simulations and a complementary analytical theory, we show that highly directional, tunable, monochromatic radiation at high frequencies could be produced from relatively low-energy electrons within a tabletop design. The output frequency is tunable in the extreme ultraviolet to hard X-ray range via electron kinetic energies from 1 keV to 5 MeV and nanograting periods from 1 μm to 5 nm. The proposed radiation source can achieve the tunability and monochromaticity of current free-electron-driven sources (free-electron lasers, synchrotrons, and laser-driven undulators), yet with a significantly reduced scale, cost, and complexity. Our design could help realize the next generation of tabletop or on-chip X-ray sources. |
| first_indexed | 2024-09-23T15:06:34Z |
| format | Article |
| id | mit-1721.1/132372 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:06:34Z |
| publishDate | 2021 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1323722021-09-21T03:14:32Z Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator Fisher, Sophie Roques-Carmes, Charles Rivera, Nicholas Wong, Liang Jie Kaminer, Ido Soljačić, Marin Copyright © 2020 American Chemical Society. We present a novel design for an ultracompact, passive light source capable of generating ultraviolet and X-ray radiation, based on the interaction of free electrons with the magnetic near-field of a ferromagnet. Our design is motivated by recent advances in the fabrication of nanostructures, which allow the confinement of large magnetic fields at the surface of ferromagnetic nanogratings. Using ab initio simulations and a complementary analytical theory, we show that highly directional, tunable, monochromatic radiation at high frequencies could be produced from relatively low-energy electrons within a tabletop design. The output frequency is tunable in the extreme ultraviolet to hard X-ray range via electron kinetic energies from 1 keV to 5 MeV and nanograting periods from 1 μm to 5 nm. The proposed radiation source can achieve the tunability and monochromaticity of current free-electron-driven sources (free-electron lasers, synchrotrons, and laser-driven undulators), yet with a significantly reduced scale, cost, and complexity. Our design could help realize the next generation of tabletop or on-chip X-ray sources. 2021-09-20T18:22:06Z 2021-09-20T18:22:06Z 2020-11-09T17:46:43Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/132372 en 10.1021/ACSPHOTONICS.0C00121 ACS Photonics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf American Chemical Society (ACS) ACS |
| spellingShingle | Fisher, Sophie Roques-Carmes, Charles Rivera, Nicholas Wong, Liang Jie Kaminer, Ido Soljačić, Marin Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title | Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title_full | Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title_fullStr | Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title_full_unstemmed | Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title_short | Monochromatic X-ray Source Based on Scattering from a Magnetic Nanoundulator |
| title_sort | monochromatic x ray source based on scattering from a magnetic nanoundulator |
| url | https://hdl.handle.net/1721.1/132372 |
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