Zobrazeno 1 - 10
of 540
pro vyhledávání: '"Allaria, E"'
Autor:
Brynes, A. D., Perosa, G., Tsai, C. -Y., Allaria, E., Badano, L., De Ninno, G., Ferrari, E., Garzella, D., Giannessi, L., Penco, G., Ribič, P. Rebernik, Roussel, E., Spampinati, S., Spezzani, C., Trovò, M., Veronese, M., Di Mitri, S.
The microbunching instability has been a long-standing issue for high-brightness free-electron lasers (FELs), and is a significant show-stopper to achieving full longitudinal coherence in the x-ray regime. This paper reports the first experimental de
Externí odkaz:
http://arxiv.org/abs/2403.11594
Autor:
Mirian, N. S., Perosa, G., Hemsing, E., Allaria, E., Badano, L., Cinquegrana, P., Danailov, M. B., De Ninno, G., Giannessi, L., Penco, G., Spampinati, S., Spezzani, C., Roussel, E., Ribic, P. R., Trovo, M., Veronese, M., Di Mitri, S.
Publikováno v:
Phys. Rev. Accel. Beams 24, 080702 (2021)
Echo-enabled harmonic generation free-electron lasers (EEHG FELs) are promising candidates to produce fully coherent soft x-ray pulses by virtue of efficient high harmonic frequency up-conversion from UV lasers. The ultimate spectral limit of EEHG, h
Externí odkaz:
http://arxiv.org/abs/2106.04161
Autor:
Brynes, A. D., Akkermans, I., Allaria, E., Badano, L., Brussaard, S., Danailov, M., Demidovich, A., De Ninno, G., Giannessi, L., Mirian, N. S., Penco, G., Perosa, G., Ribič, P. Rebernik, Roussel, E., Setija, I., Smorenburg, P., Spampinati, S., Spezzani, C., Trovò, M., Williams, P. H., Wolski, A., Di Mitri, S.
High-brightness electron bunches, such as those generated and accelerated in free-electron lasers (FELs), can develop small-scale structure in the longitudinal phase space. This causes variations in the slice energy spread and current profile of the
Externí odkaz:
http://arxiv.org/abs/2010.00252
Akademický článek
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Autor:
Takanashi, T., Golubev, N. V., Callegari, C., Fukuzawa, H., Motomura, K., Iablonskyi, D., Kumagai, Y., Mondal, S., Tachibana, T., Nagaya, K., Nishiyama, T., Matsunami, K., Johnsson, P., Piseri, P., Sansone, G., Dubrouil, A., Reduzzi, M., Carpeggiani, P., Vozzi, C., Devetta, M., Negro, M., Faccialà, D., Calegari, F., Trabattoni, A., Castrovilli, M. C., Ovcharenko, Y., Mudrich, M., Stienkemeier, F., Coreno, M., Alagia, M., Schütte, B., Berrah, N., Plekan, O., Finetti, P., Spezzani, C., Ferrari, E., Allaria, E., Penco, G., Serpico, C., De Ninno, G., Diviacco, B., Di Mitri, S., Giannessi, L., Jabbari, G., Prince, K. C., Cederbaum, L. S., Demekhin, Ph. V., Kuleff, A. I., Ueda, K.
The hitherto unexplored two-photon doubly-excited states [Ne$^{*}$($2p^{-1}3s$)]$_{2}$ were experimentally identified using the seeded, fully coherent, intense extreme ultraviolet free-electron laser FERMI. These states undergo ultrafast interatomic
Externí odkaz:
http://arxiv.org/abs/1902.09882
Autor:
Brynes, A. D., Smorenburg, P., Akkermans, I., Allaria, E., Badano, L., Brussaard, S., Danailov, M., Demidovich, A., De Ninno, G., Gauthier, D., Gaio, G., van der Geer, S. B., Giannessi, L., de Loos, M. J., Mirian, N. S., Penco, G., Rebernik, P., Rossi, F., Setija, I., Spampinati, S., Spezzani, C., Trovò, M., Williams, P. H., DiMitri, S.
An understanding of collective effects is of fundamental importance for the design and optimisation of the performance of modern accelerators. In particular, the design of an accelerator with strict requirements on the beam quality, such as a free el
Externí odkaz:
http://arxiv.org/abs/1805.05702
Autor:
Iablonskyi, D., Ueda, K., Ishikawa, Kenichi L., Kheifets, A. S., Carpeggiani, P., Reduzzi, M., Ahmadi, H., Comby, A., Sansone, G., Csizmadia, T., Kuehn, S., Ovcharenko, E., Mazza, T., Meyer, M., Fischer, A., Callegari, C., Plekan, O., Finetti, P., Allaria, E., Ferrari, E., Roussel, E., Gauthier, D., Giannessi, L., Prince, K. C.
Publikováno v:
Phys. Rev. Lett. 119, 073203 (2017)
Single photon laser enabled Auger decay (spLEAD) has been redicted theoretically [Phys. Rev. Lett. 111, 083004 (2013)] and here we report its first experimental observation in neon. Using coherent, bichromatic free-electron laser pulses, we have dete
Externí odkaz:
http://arxiv.org/abs/1705.01812
Autor:
Prince, K. C., Allaria, E., Callegari, C., Cucini, R., De Ninno, G., Di Mitri, S., Diviacco, B., Ferrari, E., Finetti, P., Gauthier, D., Giannessi, L., Mahne, N., Penco, G., Plekan, O., Raimondi, L., Rebernik, P., Roussel, E., Svetina, C., Trovò, M., Zangrando, M., Negro, M., Carpeggiani, P., Reduzzi, M., Sansone, G., Grum-Grzhimailo, A. N., Gryzlova, E. V., Strakhova, S. I., Bartschat, K., Douguet, N., Venzke, J., Iablonskyi, D., Kumagai, Y., Takanashi, T., Ueda, K., Fischer, A., Coreno, M., Stienkemeier, F., Ovcharenko, Y., Mazza, T., Meyer, M.
Publikováno v:
Nature Photonics 10, 176-179 (2016)
XUV and X-ray Free Electron Lasers (FELs) produce short wavelength pulses with high intensity, ultrashort duration, well-defined polarization and transverse coherence, and have been utilised for many experiments previously possible at long wavelength
Externí odkaz:
http://arxiv.org/abs/1701.03387
Autor:
Mahieu, B., Allaria, E., Castronovo, D., Danailov, M. B., Demidovich, A., De Ninno, G., Di Mitri, S., Fawley, W. M., Ferrari, E., Fröhlich, L., Gauthier, D., Giannessi, L., Mahne, N., Penco, G., Raimondi, L., Spampinati, S., Spezzani, C., Svetina, C., Trovò, M ., Zangrando, M .
We present the experimental demonstration of a method for generating two spectrally and temporally separated pulses by an externally seeded, single-pass free-electron laser operating in the extreme-ultraviolet spectral range. Our results, collected o
Externí odkaz:
http://arxiv.org/abs/1306.1470
Autor:
Spezzani, C., Allaria, E., Diviacco, B., Ferrari, E., Geloni, G., Karantzoulis, E., Mahieu, B., Vento, M., De Ninno, G.
Tunable polarization over a wide spectral range is a required feature of light sources employed to investigate the properties of local symmetry in both condensed and low-density matter. Among new-generation sources, free-electron lasers possess a uni
Externí odkaz:
http://arxiv.org/abs/1105.5538