Hard X-ray free-electron laser based on echo-enabled staged harmonic generation scheme

• 来源期刊: 科学通报(英文版)
• 学科: 工学
• 关键词: 硬X射线辐射 自由电子激光 谐波产生 激光回波 放大的自发辐射 种子激光 真空紫外 高增益
• 年，卷（期）: 2010,（3）
• 所属期刊栏目: ARTICLES
• 页码范围: 221-227
• 页数: 7页
• 分类号: TN241 TN248.6
• 语种: 英文

摘要

A novel approach to producing coherent hard X-ray based on the echo-enabled staged harmonic generation (EESHG) free-electron laser scheme is proposed. This scheme is not a simple cascaded echo-enabled harmonic generation (EEHG) but consists of an EEHG and a conventional high-gain harmonic generation (HGHG) like configuration, which also works in the EEHG principle. It is shown that fully coherent hard X-ray radiation can be obtained directly from a conventional VUV seed laser with reduced size and cost in c...