| Autor: |
Chao Feng, Haixiao Deng, Meng Zhang, Xingtao Wang, Si Chen, Tao Liu, Kaishang Zhou, Duan Gu, Zhen Wang, Zenggong Jiang, Xuan Li, Baoliang Wang, Wenyan Zhang, Taihe Lan, Lie Feng, Bo Liu, Qiang Gu, Yongbin Leng, Lixin Yin, Dong Wang, Zhentang Zhao, Guanglei Wang, Dao Xiang |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
Physical Review Accelerators and Beams, Vol 22, Iss 5, p 050703 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
2469-9888 |
| DOI: |
10.1103/PhysRevAccelBeams.22.050703 |
| Popis: |
The echo-enabled harmonic generation (EEHG) scheme holds promising prospects for efficiently generating intense coherent radiation at very high harmonics of a conventional ultraviolet seed laser. We report the lasing of the EEHG free-electron laser (FEL) at an extreme ultraviolet (EUV) wavelength with a seeded FEL facility, the Shanghai soft x-ray FEL. For the first time, we have benchmarked the basic theory of EEHG by measuring the bunching factor distributions over one octave down to the EUV region. Our results demonstrated the key advantages of the EEHG FEL, i.e., generation of very high harmonics with a small laser-induced energy spread and insensitivity to beam imperfections, and marks a great step towards fully coherent x rays with the EEHG scheme. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
