Compact XFEL and AMO sciences: SACLA and SCSS
Compact XFEL and AMO sciences: SACLA and SCSS
复制标题
DOI：
10.1088/0953-4075/46/16/164001
复制
发表时间：
2013-08-28
影响因子：
1.6
通讯作者：
Ueda, K.
中科院分区：
文献类型：
--
作者：
Yabashi, M.;Tanaka, H.;Ueda, K.
本文介绍了日本小型自由电子激光装置SPring-8小型SASE源测试加速器（SCSS）和SPring-8埃小型自由电子激光器（SACLA）的概念、设计和性能，以及它们在原子、分子和光学科学中的应用。在SCSS，强烈的，超快的自由电子激光脉冲在极紫外（EUV）波长已被用于研究各种多光子过程中的原子，分子和集群的离子和电子光谱。在极紫外光激发下观察到了量子光学效应超荧光。利用自由电子激光脉冲与近红外激光脉冲相结合的泵浦-探测技术，研究了亚皮秒范围内原子、分子和团簇的超快动力学。在SACLA，研究了强X射线自由电子激光脉冲引起的深内壳层多光子电离。讨论了产生横向和时间相干光的种子自由电子激光源的发展，以及对先进科学的预期影响。
The concept, design and performance of Japan's compact free-electron laser (FEL) facilities, the SPring-8 Compact SASE Source test accelerator (SCSS) and SPring-8 Angstrom Compact free electron LAser (SACLA), and their applications in mainly atomic, molecular and optical science are reviewed. At SCSS, intense, ultrafast FEL pulses at extreme ultraviolet (EUV) wavelengths have been utilized for investigating various multi-photon processes in atoms, molecules and clusters by means of ion and electron spectroscopy. The quantum optical effect superfluorescence has been observed with EUV excitation. A pump-probe technique combining FEL pulses with near infrared laser pulses has been realized to study the ultrafast dynamics of atoms, molecules and clusters in the sub-picosecond regime. At SACLA, deep inner-shell multi-photon ionization by intense x-ray FEL pulses has been investigated. The development of seeded FEL sources for producing transversely and temporally coherent light, as well as the expected impact on advanced science are discussed.