TY - RPRT TI - Attosecond inner-shell lasing at ångström wavelengths AU - Linker, Thomas M. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Institute (PULSE); Univ. of Wisconsin, Madison, WI (United States)] (ORCID:0000000205044876) AU - Halavanau, Aliaksei [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000258799578) AU - Kroll, Thomas [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)] AU - Benediktovitch, Andrei [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science] (ORCID:000000016599354X) AU - Zhang, Yu [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Institute (PULSE)] (ORCID:0000000179593213) AU - Michine, Yurina [Univ. of Electro-Communications, Tokyo (Japan)] AU - Chuchurka, Stasis [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science] AU - Abhari, Zain [Univ. of Wisconsin, Madison, WI (United States)] (ORCID:0000000282100042) AU - Ronchetti, Daniele [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Univ. of Hamburg (Germany); Friedrich Schiller Univ., Jena (Germany)] (ORCID:0009000317052202) AU - Fransson, Thomas [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Photon Ultrafast Laser Science and Engineering Institute (PULSE); KTH Royal Inst. of Technology, Stockholm (Sweden)] AU - Weninger, Clemens [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS); Lund Univ. (Sweden)] AU - Fuller, Franklin D. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)] AU - Aquila, Andy [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)] (ORCID:0000000303582774) AU - Alonso-Mori, Roberto [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)] (ORCID:0000000253570934) AU - Boutet, Sébastien [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)] (ORCID:0000000339281244) AU - Guetg, Marc W. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000197230467) AU - Marinelli, Agostino [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000272484652) AU - Lutman, Alberto A. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] (ORCID:0000000157919198) AU - Yabashi, Makina [RIKEN SPring-8 Center, Sayo (Japan); Japan Synchrotron Radiation Research Institute, Sayo, Hyogo (Japan)] (ORCID:0000000224721684) AU - Inoue, Ichiro [RIKEN SPring-8 Center, Sayo (Japan); Univ. of Hamburg (Germany)] AU - Osaka, Taito [RIKEN SPring-8 Center, Sayo (Japan)] (ORCID:0000000305459737) AU - Yamada, Jumpei [RIKEN SPring-8 Center, Sayo (Japan); Osaka Univ. (Japan)] (ORCID:0000000254764327) AU - Inubushi, Yuichi [RIKEN SPring-8 Center, Sayo (Japan); Japan Synchrotron Radiation Research Institute, Sayo, Hyogo (Japan)] AU - Yamaguchi, Gota [RIKEN SPring-8 Center, Sayo (Japan)] (ORCID:000000034305807X) AU - Hara, Toru [RIKEN SPring-8 Center, Sayo (Japan)] AU - Babu, Ganguli [Rice Univ., Houston, TX (United States)] AU - Salpekar, Devashish [Rice Univ., Houston, TX (United States)] (ORCID:0000000237368170) AU - Sayed, Farheen N. [Rice Univ., Houston, TX (United States)] AU - Ajayan, Pulickel M. [Rice Univ., Houston, TX (United States)] (ORCID:0000000183237860) AU - Kern, Jan [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000272721603) AU - Yano, Junko [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000163089071) AU - Yachandra, Vittal K. [Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)] (ORCID:0000000239837858) AU - Kling, Matthias F. [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Stanford Univ., CA (United States)] (ORCID:0000000217100775) AU - Pellegrini, Claudio [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)] AU - Yoneda, Hitoki [Univ. of Electro-Communications, Tokyo (Japan)] AU - Rohringer, Nina [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Univ. of Hamburg (Germany)] (ORCID:0000000179053567) AU - Bergmann, Uwe [Univ. of Wisconsin, Madison, WI (United States)] (ORCID:000000015639166X) PY - 2025 DO - 10.1038/s41586-025-09105-9 UR - https://www.osti.gov/biblio/2575168 ID - 2575168 ER -