Search Results - "L. Giannessi"

Two-stage seeded soft-X-ray free-electron laser by Allaria, E., Castronovo, D., Cinquegrana, P., Craievich, P., Dal Forno, M., Danailov, M. B., D'Auria, G., Demidovich, A., De Ninno, G., Di Mitri, S., Diviacco, B., Fawley, W. M., Ferianis, M., Ferrari, E., Froehlich, L., Gaio, G., Gauthier, D., Giannessi, L., Ivanov, R., Mahieu, B., Mahne, N., Nikolov, I., Parmigiani, F., Penco, G., Raimondi, L., Scafuri, C., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Svandrlik, M., Svetina, C., Trovo, M., Veronese, M., Zangrando, D., Zangrando, M.

“…We report the first generation of coherent, tunable, variable-polarization, soft X-ray femtosecond pulses, generated by a seeded free-electron laser (FEL)…”
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Prospects for free-electron lasers powered by plasma-wakefield-accelerated beams by Galletti, M., Assmann, R., Couprie, M. E., Ferrario, M., Giannessi, L., Irman, A., Pompili, R., Wang, W.

“…Plasma-wakefield-based acceleration technology has the potential to revolutionize the field of particle accelerators. By providing acceleration gradients…”
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Experimental demonstration of enhanced self-amplified spontaneous emission by an optical klystron by Penco, G, Allaria, E, De Ninno, G, Ferrari, E, Giannessi, L

“…We report the first experimental evidence of enhancement of self-amplified spontaneous emission, due to the use of an optical klystron. In this free-electron…”
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Coherent control with a short-wavelength free-electron laser by 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.

“…Researchers demonstrate correlation of two colours (63.0 and 31.5 nm wavelengths) in a free-electron laser and control photoelectron angular distribution by…”
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Multicolor High-Gain Free-Electron Laser Driven by Seeded Microbunching Instability by Roussel, E, Ferrari, E, Allaria, E, Penco, G, Di Mitri, S, Veronese, M, Danailov, M, Gauthier, D, Giannessi, L

“…Laser-heater systems are essential tools to control and optimize high-gain free-electron lasers (FELs) working in the x-ray wavelength range. Indeed, these…”
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Experimental evidence of intrabeam scattering in a free-electron laser driver by Di Mitri, S, Perosa, G, Brynes, A, Setija, I, Spampinati, S, Williams, P H, Wolski, A, Allaria, E, Brussaard, S, Giannessi, L, Penco, G, Rebernik, P R, Trovò, M

“…The effect of multiple small-angle Coulomb scattering, or intrabeam scattering (IBS) is routinely observed in electron storage rings over the typical damping…”
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Free-electron lasing with compact beam-driven plasma wakefield accelerator by Pompili, R., Alesini, D., Anania, M. P., Arjmand, S., Behtouei, M., Bellaveglia, M., Biagioni, A., Buonomo, B., Cardelli, F., Carpanese, M., Chiadroni, E., Cianchi, A., Costa, G., Del Dotto, A., Del Giorno, M., Dipace, F., Doria, A., Filippi, F., Galletti, M., Giannessi, L., Giribono, A., Iovine, P., Lollo, V., Mostacci, A., Nguyen, F., Opromolla, M., Di Palma, E., Pellegrino, L., Petralia, A., Petrillo, V., Piersanti, L., Di Pirro, G., Romeo, S., Rossi, A. R., Scifo, J., Selce, A., Shpakov, V., Stella, A., Vaccarezza, C., Villa, F., Zigler, A., Ferrario, M.

“…The possibility to accelerate electron beams to ultra-relativistic velocities over short distances by using plasma-based technology holds the potential for a…”
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Observation and Control of Laser-Enabled Auger Decay by Iablonskyi, D, Ueda, K, Ishikawa, K 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

“…Single-photon laser-enabled Auger decay (spLEAD) is predicted theoretically [B. Cooper and V. Averbukh, Phys. Rev. Lett. 111, 083004…”
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Diffraction imaging of light induced dynamics in xenon-doped helium nanodroplets by Langbehn, B, Ovcharenko, Y, Clark, A, Coreno, M, Cucini, R, Demidovich, A, Drabbels, M, Finetti, P, Di Fraia, M, Giannessi, L, Grazioli, C, Iablonskyi, D, LaForge, A C, Nishiyama, T, Oliver Álvarez de Lara, V, Peltz, C, Piseri, P, Plekan, O, Sander, K, Ueda, K, Fennel, T, Prince, K C, Stienkemeier, F, Callegari, C, Möller, T, Rupp, D

“…Abstract We explore the light induced dynamics in superfluid helium nanodroplets with wide-angle scattering in a pump–probe measurement scheme. The droplets…”
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Two-colour pump–probe experiments with a twin-pulse-seed extreme ultraviolet free-electron laser by Allaria, E., Bencivenga, F., Borghes, R., Capotondi, F., Castronovo, D., Charalambous, P., Cinquegrana, P., Danailov, M. B., De Ninno, G., Demidovich, A., Di Mitri, S., Diviacco, B., Fausti, D., Fawley, W. M., Ferrari, E., Froehlich, L., Gauthier, D., Gessini, A., Giannessi, L., Ivanov, R., Kiskinova, M., Kurdi, G., Mahieu, B., Mahne, N., Nikolov, I., Masciovecchio, C., Pedersoli, E., Penco, G., Raimondi, L., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Svetina, C., Trovò, M., Zangrando, M.

“…Exploring the dynamics of matter driven to extreme non-equilibrium states by an intense ultrashort X-ray pulse is becoming reality, thanks to the advent of…”
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Addendum: Experimental evidence of intrabeam scattering in a free-electron laser driver (2020 New J. Phys. 22 083053) by Di Mitri, S, Perosa, G, Brynes, A, Setija, I, Spampinati, S, Williams, P H, Wolski, A, Allaria, E, Brussaard, S, Giannessi, L, Penco, G, Rebernik, P R, Trov, M

“…Abstract A conceptual inaccuracy in the calculation of energy spread induced by intrabeam scattering in the presence of linear acceleration is put in evidence…”
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Single Shot Polarization Characterization of XUV FEL Pulses from Crossed Polarized Undulators by Ferrari, E., Allaria, E., Buck, J., De Ninno, G., Diviacco, B., Gauthier, D., Giannessi, L., Glaser, L., Huang, Z., Ilchen, M., Lambert, G., Lutman, A. A., Mahieu, B., Penco, G., Spezzani, C., Viefhaus, J.

“…Polarization control is a key feature of light generated by short-wavelength free-electron lasers. In this work, we report the first experimental…”
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Beyond the limits of 1D coherent synchrotron radiation by 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, Di Mitri, S

“…An understanding of collective effects is of fundamental importance for the design and optimisation of the performance of modern accelerators. In particular,…”
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Observation of time-domain modulation of free-electron-laser pulses by multipeaked electron-energy spectrum by Petrillo, V, Anania, M P, Artioli, M, Bacci, A, Bellaveglia, M, Chiadroni, E, Cianchi, A, Ciocci, F, Dattoli, G, Di Giovenale, D, Di Pirro, G, Ferrario, M, Gatti, G, Giannessi, L, Mostacci, A, Musumeci, P, Petralia, A, Pompili, R, Quattromini, M, Rau, J V, Ronsivalle, C, Rossi, A R, Sabia, E, Vaccarezza, C, Villa, F

“…We present the experimental demonstration of a new scheme for the generation of ultrashort pulse trains based on free-electron-laser (FEL) emission from a…”
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Enhanced seeded free electron laser performance with a “cold” electron beam by Penco, G., Perosa, G., Allaria, E., Di Mitri, S., Ferrari, E., Giannessi, L., Spampinati, S., Spezzani, C., Veronese, M.

“…FERMI is a seeded free electron laser (FEL) based on the high gain harmonic generation (HGHG) scheme and has been generating intense and fully coherent extreme…”
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Experimental demonstration of electron longitudinal-phase-space linearization by shaping the photoinjector laser pulse by Penco, G, Danailov, M, Demidovich, A, Allaria, E, De Ninno, G, Di Mitri, S, Fawley, W M, Ferrari, E, Giannessi, L, Trovó, M

“…Control of the electron-beam longitudinal-phase-space distribution is of crucial importance in a number of accelerator applications, such as linac-driven…”
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Passive Linearization of the Magnetic Bunch Compression Using Self-Induced Fields by Penco, G, Allaria, E, Cudin, I, Di Mitri, S, Gauthier, D, Spampinati, S, Trovó, M, Giannessi, L, Roussel, E, Bettoni, S, Craievich, P, Ferrari, E

“…In linac-driven free-electron lasers, colliders, and energy recovery linacs, a common way to compress the electron bunch to kiloampere level is based upon the…”
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Laser heater commissioning at an externally seeded free-electron laser by Spampinati, S., Allaria, E., Badano, L., Bassanese, S., Biedron, S., Castronovo, D., Craievich, P., Danailov, M. B., Demidovich, A., De Ninno, G., Di Mitri, S., Diviacco, B., Dal Forno, M., Ferrari, E., Fawley, W. M., Fröhlich, L., Gaio, G., Giannessi, L., Penco, G., Serpico, C., Spezzani, C., Trovò, M., Veronese, M., Milton, S. V., Svandrlik, M.

“…FERMI is the first user facility based upon an externally seeded free-electron laser (FEL) and was designed to deliver high quality, transversely and…”
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Impact of non-Gaussian electron energy heating upon the performance of a seeded free-electron laser by Ferrari, E, Allaria, E, Fawley, W, Giannessi, L, Huang, Z, Penco, G, Spampinati, S

“…Laser-heater systems have been demonstrated to be an important component for the accelerators that drive high gain free electron laser (FEL) facilities. These…”
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Controlling Fragmentation of the Acetylene Cation in the Vacuum Ultraviolet via Transient Molecular Alignment by Varvarezos, L., Delgado-Guerrero, J., Di Fraia, M., Kelly, T. J., Palacios, A., Callegari, C., Cavalieri, A. L., Coffee, R., Danailov, M., Decleva, P., Demidovich, A., DiMauro, L., Düsterer, S., Giannessi, L., Helml, W., Ilchen, M., Kienberger, R., Mazza, T., Meyer, M., Moshammer, R., Pedersini, C., Plekan, O., Prince, K. C., Simoncig, A., Schletter, A., Ueda, K., Wurzer, M., Zangrando, M., Martín, F., Costello, J. T.

“…An open-loop control scheme of molecular fragmentation based on transient molecular alignment combined with single-photon ionization induced by a…”
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