Zobrazeno 1 - 10
of 493
pro vyhledávání: '"G. De Ninno"'
Autor:
A. D. Brynes, G. Perosa, C.-Y. Tsai, E. Allaria, L. Badano, G. De Ninno, E. Ferrari, D. Garzella, L. Giannessi, G. Penco, P. Rebernik Ribič, E. Roussel, S. Spampinati, C. Spezzani, M. Trovò, M. Veronese, S. Di Mitri
Publikováno v:
Physical Review Accelerators and Beams, Vol 27, Iss 7, p 074402 (2024)
The microbunching instability has been a long-standing issue for high-brightness free-electron lasers (FELs) and is a significant showstopper to achieve full longitudinal coherence in the x-ray regime. This paper reports the first experimental demons
Externí odkaz:
https://doaj.org/article/cf63832105054e55beabc5a742013b04
Autor:
F. Sottocorona, G. Perosa, E. Allaria, A. Brynes, M. B. Danailov, G. De Ninno, S. Di Mitri, D. Garzella, G. Penco, C. Spezzani, L. Giannessi
Publikováno v:
Physical Review Accelerators and Beams, Vol 26, Iss 9, p 090702 (2023)
The basic theory of free-electron lasers (FELs) indicates that the output wavelength of a seeded FEL operated in the high-gain harmonic generation (HGHG) configuration is determined by the wavelength of the seed laser and light is emitted when the un
Externí odkaz:
https://doaj.org/article/1244c4850796424bbae0ea458618b0ac
Autor:
D. Faccialà, M. Devetta, S. Beauvarlet, N. Besley, F. Calegari, C. Callegari, D. Catone, E. Cinquanta, A. G. Ciriolo, L. Colaizzi, M. Coreno, G. Crippa, G. De Ninno, M. Di Fraia, M. Galli, G. A. Garcia, Y. Mairesse, M. Negro, O. Plekan, P. Prasannan Geetha, K. C. Prince, A. Pusala, S. Stagira, S. Turchini, K. Ueda, D. You, N. Zema, V. Blanchet, L. Nahon, I. Powis, C. Vozzi
Publikováno v:
Physical Review X, Vol 13, Iss 1, p 011044 (2023)
Chirality is widespread in nature, playing a fundamental role in biochemical processes and in the origin of life itself. The observation of dynamics in chiral molecules is crucial for the understanding and control of the chiral activity of photoexcit
Externí odkaz:
https://doaj.org/article/08607be60e024b88bf8837847833d35b
Autor:
M. Pop, E. Allaria, F. Curbis, G. Geloni, M. Manfredda, S. Di Mitri, L. Foglia, D. Garzella, L. Giannessi, B. Mahieu, N. Mahne, N. Mirian, G. Penco, G. Perosa, P. R. Ribič, A. Simoncig, S. Spampinati, C. Spezzani, M. Trovò, S. Werin, M. Zangrando, G. De Ninno
Publikováno v:
Physical Review Accelerators and Beams, Vol 25, Iss 4, p 040701 (2022)
The advent of x-ray free-electron lasers (FELs) drastically enhanced the capabilities of several analytical techniques, for which the degree of transverse (spatial) coherence of the source is essential. FELs can be operated in self-amplified spontane
Externí odkaz:
https://doaj.org/article/49c731cdf2364b8191833a3ca75f5475
Autor:
N. S. Mirian, G. Perosa, E. Hemsing, E. Allaria, L. Badano, P. Cinquegrana, M. B. Danailov, G. De Ninno, L. Giannessi, G. Penco, S. Spampinati, C. Spezzani, E. Roussel, P. R. Ribič, M. Trovó, M. Veronese, S. Di Mitri
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 8, p 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 ultraviolet lasers. The ultimate spectral limit o
Externí odkaz:
https://doaj.org/article/39e91867b4d44106bffb583be38b4040
Autor:
D. Gauthier, P. Rebernik Ribič, G. Adhikary, A. Camper, C. Chappuis, R. Cucini, L. F. DiMauro, G. Dovillaire, F. Frassetto, R. Géneaux, P. Miotti, L. Poletto, B. Ressel, C. Spezzani, M. Stupar, T. Ruchon, G. De Ninno
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-7 (2017)
The controlled generation of extreme-ultraviolet beams with controllable topological charge has not been demonstrated. Here, Gauthieret al. report on the generation of extreme-ultraviolet optical vortices with femtosecond duration carrying a controll
Externí odkaz:
https://doaj.org/article/93d0be7c7ec744f2b4b604c95b08bff6
Autor:
G. Perosa, E. M. Allaria, L. Badano, N. Bruchon, P. Cinquegrana, M. B. Danailov, A. Demidovich, G. De Ninno, L. Giannessi, N. Mirian, G. M. Penco, P. Rebernik, E. Roussel, P. Sigalotti, S. Spampinati, M. Veronese, M. Trovò, S. Di Mitri
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 11, p 110703 (2020)
Extension of stable longitudinal coherence from vacuum ultraviolet to x rays is highly sought after in the free-electron laser (FEL) community, but it is often prevented by bandwidth broadening originated in the electron beam microbunching instabilit
Externí odkaz:
https://doaj.org/article/389f142fea8148a68f10628b960c9bbb
Autor:
A. D. Brynes, I. Akkermans, E. Allaria, L. Badano, S. Brussaard, M. Danailov, A. Demidovich, G. De Ninno, L. Giannessi, N. S. Mirian, G. Penco, G. Perosa, P. Rebernik Ribič, E. Roussel, I. Setija, P. Smorenburg, S. Spampinati, C. Spezzani, M. Trovò, P. H. Williams, A. Wolski, S. Di Mitri
Publikováno v:
Physical Review Accelerators and Beams, Vol 23, Iss 10, p 104401 (2020)
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:
https://doaj.org/article/b55586a648874dcd94d9b25720f59dc6
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 10, p 100701 (2019)
We present the design of a free-electron laser (FEL) doubler suitable for the simultaneous operation of two FEL lines, in either self-amplified spontaneous emission or externally seeded configuration. The doubler relies on the physical selection of t
Externí odkaz:
https://doaj.org/article/e967555c4e244cbbaaaa789f536c6495
Autor:
S. Spampinati, E. Allaria, L. Badano, S. Bassanese, S. Biedron, D. Castronovo, P. Craievich, M. B. Danailov, A. Demidovich, G. De Ninno, S. Di Mitri, B. Diviacco, M. Dal Forno, E. Ferrari, W. M. Fawley, L. Fröhlich, G. Gaio, L. Giannessi, G. Penco, C. Serpico, C. Spezzani, M. Trovò, M. Veronese, S. V. Milton, M. Svandrlik
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 17, Iss 12, p 120705 (2014)
FERMI is the first user facility based upon an externally seeded free-electron laser (FEL) and was designed to deliver high quality, transversely and longitudinally coherent radiation pulses in the extreme ultraviolet and soft x-ray spectral regimes.
Externí odkaz:
https://doaj.org/article/908a997031af41459186cccb4287854b