The two-dimensional single shot transverse coherence of the Self-Amplified Spontaneous Emission of the SPARC-LAB Free-Electron Laser was measured through the statistical analysis of a speckle field produced by heterodyning the radiation beam with a huge number of reference waves, scattered by a suspension of particles. In this paper we report the measurements and the evaluation of the transverse coherence along the SPARC-LAB undulator modules. The measure method was demonstrated to be precise and robust, it does not require any a priori assumptions and can be implemented over a wide range of wavelengths, from the optical radiation to the x-rays.
Mapping the transverse coherence of the self amplified spontaneous emission of a free-electron laser with the heterodyne speckle method / M.D. Alaimo, M.P. Anania, M. Artioli, A. Bacci, M. Bellaveglia, F. Ciocci, E. Chiadroni, A. Cianchi, G. Dattoli, G. Di Pirro, M. Ferrario, G. Gatti, L. Giannessi, M. Manfredda, R. Martucci, A. Mostacci, B. Paroli, A. Petralia, V. Petrillo, R. Pompili, M.A.C. Potenza, M. Quattromini, J. Rau, D. Redoglio, A.R. Rossi, L. Serafini, V. Surrenti, A. Torre, C. Vaccarezza, F. Villa. - In: OPTICS EXPRESS. - ISSN 1094-4087. - 22:24(2014 Nov 24), pp. 30013-30023. [10.1364/OE.22.030013]
Mapping the transverse coherence of the self amplified spontaneous emission of a free-electron laser with the heterodyne speckle method
A. Bacci;M. Manfredda;R. Martucci;B. Paroli;V. Petrillo;M.A.C. Potenza;D. Redoglio;F. VillaUltimo
2014
Abstract
The two-dimensional single shot transverse coherence of the Self-Amplified Spontaneous Emission of the SPARC-LAB Free-Electron Laser was measured through the statistical analysis of a speckle field produced by heterodyning the radiation beam with a huge number of reference waves, scattered by a suspension of particles. In this paper we report the measurements and the evaluation of the transverse coherence along the SPARC-LAB undulator modules. The measure method was demonstrated to be precise and robust, it does not require any a priori assumptions and can be implemented over a wide range of wavelengths, from the optical radiation to the x-rays.
| File | Dimensione | Formato | |
|---|---|---|---|
|
oe-22-24-30013.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
1.62 MB
Formato
Adobe PDF
|
1.62 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
