Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser
We proposed a simple method based on the seeded free-electron laser (FEL) to generate fully coherent X-ray pulses with durations at dozens of attosecond level. The echo-enabled harmonic generation technique is utilized to generate the fully coherent laser pulse covering the water-window range. A wav...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
American Association for the Advancement of Science (AAAS)
2022-01-01
|
| Series: | Ultrafast Science |
| Online Access: | http://dx.doi.org/10.34133/2022/9812478 |
| _version_ | 1811345305773277184 |
|---|---|
| author | Yaozong Xiao Chao Feng Bo Liu |
| author_facet | Yaozong Xiao Chao Feng Bo Liu |
| author_sort | Yaozong Xiao |
| collection | DOAJ |
| description | We proposed a simple method based on the seeded free-electron laser (FEL) to generate fully coherent X-ray pulses with durations at dozens of attosecond level. The echo-enabled harmonic generation technique is utilized to generate the fully coherent laser pulse covering the water-window range. A wavefront rotation laser is adopted as the seed to tailor the longitudinal contour of the radiation pulse. Due to the sensitivity of seeded FEL to external lasers, this method can effectively inhibit the bunching of the adjacent regions while preserving an isolated bunching in the middle. Sending such an electron beam into a short undulator, simulation results show that ultrashort X-ray pulses with peak power of GW level and pulse duration as short as 86 attoseconds can be generated. The proposed scheme can make it possible to study the electronic dynamic of the valence electrons of which the time scale is about 100 attoseconds and may open up a new frontier of ultrafast science. |
| first_indexed | 2024-04-13T20:01:09Z |
| format | Article |
| id | doaj.art-5f90b67cec664187a5ee52a59579847f |
| institution | Directory Open Access Journal |
| issn | 2765-8791 |
| language | English |
| last_indexed | 2024-04-13T20:01:09Z |
| publishDate | 2022-01-01 |
| publisher | American Association for the Advancement of Science (AAAS) |
| record_format | Article |
| series | Ultrafast Science |
| spelling | doaj.art-5f90b67cec664187a5ee52a59579847f2022-12-22T02:32:12ZengAmerican Association for the Advancement of Science (AAAS)Ultrafast Science2765-87912022-01-01202210.34133/2022/9812478Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron LaserYaozong Xiao0Chao Feng1Bo Liu2Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; University of the Chinese Academy of Sciences, Beijing 100049, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201204, ChinaShanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China; University of the Chinese Academy of Sciences, Beijing 100049, ChinaWe proposed a simple method based on the seeded free-electron laser (FEL) to generate fully coherent X-ray pulses with durations at dozens of attosecond level. The echo-enabled harmonic generation technique is utilized to generate the fully coherent laser pulse covering the water-window range. A wavefront rotation laser is adopted as the seed to tailor the longitudinal contour of the radiation pulse. Due to the sensitivity of seeded FEL to external lasers, this method can effectively inhibit the bunching of the adjacent regions while preserving an isolated bunching in the middle. Sending such an electron beam into a short undulator, simulation results show that ultrashort X-ray pulses with peak power of GW level and pulse duration as short as 86 attoseconds can be generated. The proposed scheme can make it possible to study the electronic dynamic of the valence electrons of which the time scale is about 100 attoseconds and may open up a new frontier of ultrafast science.http://dx.doi.org/10.34133/2022/9812478 |
| spellingShingle | Yaozong Xiao Chao Feng Bo Liu Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser Ultrafast Science |
| title | Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser |
| title_full | Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser |
| title_fullStr | Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser |
| title_full_unstemmed | Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser |
| title_short | Generating Isolated Attosecond X-Ray Pulses by Wavefront Control in a Seeded Free-Electron Laser |
| title_sort | generating isolated attosecond x ray pulses by wavefront control in a seeded free electron laser |
| url | http://dx.doi.org/10.34133/2022/9812478 |
| work_keys_str_mv | AT yaozongxiao generatingisolatedattosecondxraypulsesbywavefrontcontrolinaseededfreeelectronlaser AT chaofeng generatingisolatedattosecondxraypulsesbywavefrontcontrolinaseededfreeelectronlaser AT boliu generatingisolatedattosecondxraypulsesbywavefrontcontrolinaseededfreeelectronlaser |