Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches
Ultrashort electron bunches are useful for applications like ultrafast imaging, coherent radiation production, and the design of compact electron accelerators. Currently, however, the shortest achievable bunches, at attosecond time scales, have only been realized in the single- or very few-electron...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2019-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/ab0aa7 |
| _version_ | 1797750129429577728 |
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| author | Jeremy Lim Yidong Chong Liang Jie Wong |
| author_facet | Jeremy Lim Yidong Chong Liang Jie Wong |
| author_sort | Jeremy Lim |
| collection | DOAJ |
| description | Ultrashort electron bunches are useful for applications like ultrafast imaging, coherent radiation production, and the design of compact electron accelerators. Currently, however, the shortest achievable bunches, at attosecond time scales, have only been realized in the single- or very few-electron regimes, limited by Coulomb repulsion and electron energy spread. Using ab initio simulations and complementary theoretical analysis, we show that highly-charged bunches are achievable by subjecting relativistic (few MeV-scale) electrons to a superposition of terahertz and optical pulses. We provide two detailed examples that use realistic electron bunches and laser pulse parameters which are within the reach of current compact set-ups: one with bunches of >240 electrons contained within 20 as durations and 15 μ m radii, and one with final electron bunches of 1 fC contained within sub-400 as durations and 8 μ m radii. Our results reveal a route to achieve such extreme combinations of high charge and attosecond pulse durations with existing technology. |
| first_indexed | 2024-03-12T16:29:15Z |
| format | Article |
| id | doaj.art-2a5bc14e329840958d1a8f5305710774 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:29:15Z |
| publishDate | 2019-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-2a5bc14e329840958d1a8f53057107742023-08-08T15:35:00ZengIOP PublishingNew Journal of Physics1367-26302019-01-0121303302010.1088/1367-2630/ab0aa7Terahertz-optical intensity grating for creating high-charge, attosecond electron bunchesJeremy Lim0https://orcid.org/0000-0003-2484-6847Yidong Chong1https://orcid.org/0000-0002-8649-7884Liang Jie Wong2School of Physical and Mathematical Sciences Nanyang Technological University , Singapore 637371, SingaporeSchool of Physical and Mathematical Sciences Nanyang Technological University , Singapore 637371, Singapore; Centre for Disruptive Photonic Technologies , Nanyang Technological University, Singapore 637371, SingaporeSingapore Institute of Manufacturing Technology , Singapore 138634, SingaporeUltrashort electron bunches are useful for applications like ultrafast imaging, coherent radiation production, and the design of compact electron accelerators. Currently, however, the shortest achievable bunches, at attosecond time scales, have only been realized in the single- or very few-electron regimes, limited by Coulomb repulsion and electron energy spread. Using ab initio simulations and complementary theoretical analysis, we show that highly-charged bunches are achievable by subjecting relativistic (few MeV-scale) electrons to a superposition of terahertz and optical pulses. We provide two detailed examples that use realistic electron bunches and laser pulse parameters which are within the reach of current compact set-ups: one with bunches of >240 electrons contained within 20 as durations and 15 μ m radii, and one with final electron bunches of 1 fC contained within sub-400 as durations and 8 μ m radii. Our results reveal a route to achieve such extreme combinations of high charge and attosecond pulse durations with existing technology.https://doi.org/10.1088/1367-2630/ab0aa7attosecond electron pulse shapingcoherent terahertz sourcesrelativistic electrons |
| spellingShingle | Jeremy Lim Yidong Chong Liang Jie Wong Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches New Journal of Physics attosecond electron pulse shaping coherent terahertz sources relativistic electrons |
| title | Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches |
| title_full | Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches |
| title_fullStr | Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches |
| title_full_unstemmed | Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches |
| title_short | Terahertz-optical intensity grating for creating high-charge, attosecond electron bunches |
| title_sort | terahertz optical intensity grating for creating high charge attosecond electron bunches |
| topic | attosecond electron pulse shaping coherent terahertz sources relativistic electrons |
| url | https://doi.org/10.1088/1367-2630/ab0aa7 |
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