Attosecond Inner-Shell Lasing at Angstrom Wavelengths
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arXiv
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| Natura: | Preprint |
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2024
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| author | Linker, Thomas M. Halavanau, Aliaksei Kroll, Thomas Benediktovitch, Andrei Zhang, Yu Michine, Yurina Chuchurka, Stasis Abhari, Zain Ronchetti, Daniele Fransson, Thomas Weninger, Clemens Fuller, Franklin D. Aquila, Andy Alonso-Mori, Roberto Boutet, Sebastien Guetg, Marc W. Marinelli, Agostino Lutman, Alberto A. Yabashi, Makina Inoue, Ichiro Osaka, Taito Yamada, Jumpei Inubushi, Yuichi Yamaguchi, Gota Hara, Toru Babu, Ganguli Salpekar, Devashish Sayed, Farheen N. Ajayan, Pulickel M. Kern, Jan Yano, Junko Yachandra, Vittal K. Kling, Matthias F. Pellegrini, Claudio Yoneda, Hitoki Rohringer, Nina Bergmann, Uwe |
| author_facet | Linker, Thomas M. Halavanau, Aliaksei Kroll, Thomas Benediktovitch, Andrei Zhang, Yu Michine, Yurina Chuchurka, Stasis Abhari, Zain Ronchetti, Daniele Fransson, Thomas Weninger, Clemens Fuller, Franklin D. Aquila, Andy Alonso-Mori, Roberto Boutet, Sebastien Guetg, Marc W. Marinelli, Agostino Lutman, Alberto A. Yabashi, Makina Inoue, Ichiro Osaka, Taito Yamada, Jumpei Inubushi, Yuichi Yamaguchi, Gota Hara, Toru Babu, Ganguli Salpekar, Devashish Sayed, Farheen N. Ajayan, Pulickel M. Kern, Jan Yano, Junko Yachandra, Vittal K. Kling, Matthias F. Pellegrini, Claudio Yoneda, Hitoki Rohringer, Nina Bergmann, Uwe |
| contents | Since the invention of the laser nonlinear effects such as filamentation, Rabi-cycling and collective emission have been explored in the optical regime leading to a wide range of scientific and industrial applications. X-ray free electron lasers (XFELs) have led to the extension of many optical techniques to X-rays for their advantages of angstrom scale spatial resolution and elemental specificity. One such example is XFEL driven population inversion of 1s core hole states resulting in inner-shell K$α$ (2p to 1s) X-ray lasing in elements ranging from neon to copper, which has been utilized for nonlinear spectroscopy and development of next generation X-ray laser sources. Here we show that strong lasing effects, similar to those observed in the optical regime, can occur at 1.5 to 2.1 angstrom wavelengths during high intensity (> ${10^{19}}$ W/cm${^{2}}$) XFEL driven inner-shell lasing and superfluorescence of copper and manganese. Depending on the temporal substructure of the XFEL pump pulses(containing ${~10^{6}}$ - ${10^{8}}$ photons) i, the 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_06914 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Attosecond Inner-Shell Lasing at Angstrom Wavelengths Linker, Thomas M. Halavanau, Aliaksei Kroll, Thomas Benediktovitch, Andrei Zhang, Yu Michine, Yurina Chuchurka, Stasis Abhari, Zain Ronchetti, Daniele Fransson, Thomas Weninger, Clemens Fuller, Franklin D. Aquila, Andy Alonso-Mori, Roberto Boutet, Sebastien Guetg, Marc W. Marinelli, Agostino Lutman, Alberto A. Yabashi, Makina Inoue, Ichiro Osaka, Taito Yamada, Jumpei Inubushi, Yuichi Yamaguchi, Gota Hara, Toru Babu, Ganguli Salpekar, Devashish Sayed, Farheen N. Ajayan, Pulickel M. Kern, Jan Yano, Junko Yachandra, Vittal K. Kling, Matthias F. Pellegrini, Claudio Yoneda, Hitoki Rohringer, Nina Bergmann, Uwe Optics Atomic Physics Since the invention of the laser nonlinear effects such as filamentation, Rabi-cycling and collective emission have been explored in the optical regime leading to a wide range of scientific and industrial applications. X-ray free electron lasers (XFELs) have led to the extension of many optical techniques to X-rays for their advantages of angstrom scale spatial resolution and elemental specificity. One such example is XFEL driven population inversion of 1s core hole states resulting in inner-shell K$α$ (2p to 1s) X-ray lasing in elements ranging from neon to copper, which has been utilized for nonlinear spectroscopy and development of next generation X-ray laser sources. Here we show that strong lasing effects, similar to those observed in the optical regime, can occur at 1.5 to 2.1 angstrom wavelengths during high intensity (> ${10^{19}}$ W/cm${^{2}}$) XFEL driven inner-shell lasing and superfluorescence of copper and manganese. Depending on the temporal substructure of the XFEL pump pulses(containing ${~10^{6}}$ - ${10^{8}}$ photons) i, the 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. |
| title | Attosecond Inner-Shell Lasing at Angstrom Wavelengths |
| topic | Optics Atomic Physics |
| url | https://arxiv.org/abs/2409.06914 |