亚秒内壳激光于埃朗格尔波长
摘要
自激光器非线性效应如束缝化、拉比循环和集体发射被探索于光学频段，导致广泛的科学和工业应用。X射线自由电子激光（XFEL）使得许多光学技术被扩展到X射线，利用其亚埃尔格尔尺度的空间分辨率和元素特异性优势。一种示例是XFEL驱动的1s 核心空位态的人口反转，导致从氖到铜的元素实现内层 Kα（2p 到 1s）X射线激光，这已被用于非线性光谱学和下一代X射线激光源的开发。本文表明，类似于光学频段所观察到的强激光效应，在XFEL驱动的铜和锰的内层激光和超fluorescence中，以1.5到2.1埃尔格尔波长发生强激光效应。 Depending on the temporal substructure of the XFEL pump pulses(包含 - 个光子)， resulting inner-shell X-ray laser pulses can exhibit strong spatial inhomogeneities as well as spectral splitting, inhomogeneities and broadening. Through 3D Maxwell Bloch theory we show that the observed spatial inhomogeneities result from X-ray filamentation, and that the spectral splitting and broadening is driven by Rabi cycling with sub-femtosecond periods. Our simulations indicate that these X-ray pulses can have pulse lengths of less than 100 attoseconds and coherence properties that open the door for quantum X-ray optics applications.
引用
@article{arxiv.2409.06914,
title = {Attosecond Inner-Shell Lasing at Angstrom Wavelengths},
author = {Thomas M. Linker and Aliaksei Halavanau and Thomas Kroll and Andrei Benediktovitch and Yu Zhang and Yurina Michine and Stasis Chuchurka and Zain Abhari and Daniele Ronchetti and Thomas Fransson and Clemens Weninger and Franklin D. Fuller and Andy Aquila and Roberto Alonso-Mori and Sebastien Boutet and Marc W. Guetg and Agostino Marinelli and Alberto A. Lutman and Makina Yabashi and Ichiro Inoue and Taito Osaka and Jumpei Yamada and Yuichi Inubushi and Gota Yamaguchi and Toru Hara and Ganguli Babu and Devashish Salpekar and Farheen N. Sayed and Pulickel M. Ajayan and Jan Kern and Junko Yano and Vittal K. Yachandra and Matthias F. Kling and Claudio Pellegrini and Hitoki Yoneda and Nina Rohringer and Uwe Bergmann},
journal= {arXiv preprint arXiv:2409.06914},
year = {2025}
}