Search

Your search keyword '"Masciovecchio, Claudio"' showing total 6 results
Start Over Author "Masciovecchio, Claudio" Topic free-electron laser
6 results on '"Masciovecchio, Claudio"'

1. First Lasing of a Free Electron Laser in the Soft X-Ray Spectral Range with Echo Enabled Harmonic Generation

Author

Allaria, Enrico, Abrami, Alessandro, Badano, Laura, Bossi, Maurizio, Braun, Hans-Heinrich, Bruchon, Niky, Capotondi, Flavio, Castronovo, Davide, Cautero, Marco, Cinquegrana, Paolo, Coreno, Marcello, Couprie, Marie-Emmanuelle, Cudin, Ivan, Danailov, Miltcho, De Ninno, Giovanni, Demidovich, Alexander, Di Mitri, Simone, Diviacco, Bruno, Fawley, William, Feng, Chao, Ferianis, Mario, Ferrari, Eugenio, Foglia, Laura, Frassetto, Fabio, Gaio, Giulio, Garzella, David, Ghaith, Amin, Giacuzzo, Fabio, Giannessi, Luca, Grattoni, Vanessa, Grulja, Sandi, Hemsing, Erik, Iazzourene, Fatma, Kurdi, Gabor, Lonza, Marco, Mahne, Nicola, Malvestuto, Marco, Manfredda, Michele, Masciovecchio, Claudio, Miotti, Paolo, Mirian, Najmeh, Nikolov, Ivaylo, Penco, Giuseppe, Penn, Gregory, Poletto, Luca, Pop, Mihai, Prat, Eduard, Principi, Emiliano, Raimondi, Lorenzo, Rebernik Ribič, Primoz, Reiche, Sven, Roussel, Eléonore, Sauro, Roberto, Scafuri, Claudio, Sigalotti, Paolo, Spampinati, Simone, Spezzani, Carlo, Sturari, Luca, Svandrlik, Michele, Tanikawa, Takanori, Trovò, Mauro, Veronese, Marco, Vivoda, Davide, Xiang, Dao, Zaccaria, Maurizio, Zangrando, Dino, Zangrando, Marco, Synchrotron SOLEIL (SSOLEIL), Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 (PhLAM), and Université de Lille-Centre National de la Recherche Scientifique (CNRS)

Subjects
FEL, electron, free-electron laser, experiment, echo enabled harmonic generation, [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph], free-electron-laser, Accelerator Physics, First Lasing, laser
Abstract

We report on the successful operation of a Free Electron Laser (FEL) in the Echo Enabled Harmonic Generation (EEHG) scheme at the FERMI facility at Sincrotrone Trieste. The experiment required a modification of the FEL-2 undulator line which, in normal operation, uses two stages of high-gain harmonic generation separated by a delay line. In addition to a new seed laser, the dispersion in the delay-line was increased, the second stage modulator changed and a new manipulator installed in the delay-line chicane hosting additional diagnostic components. With this modified setup we have demonstrated the first evidence of strong exponential gain in a free electron laser operated in EEHG mode at wavelengths as short as 5 nm., Proceedings of the 39th Free Electron Laser Conference, FEL2019, Hamburg, Germany

Published
2019

2. Nanoscale Thermoelasticity in Silicon Nitride Membranes: Implications for Thermal Management.

Author

Milloch, Alessandra, Mincigrucci, Riccardo, Capotondi, Flavio, De Angelis, Dario, Foglia, Laura, Kurdi, Gabor, Naumenko, Denys, Pedersoli, Emanuele, Pelli-Cresi, Jacopo S., Simoncig, Alberto, Wehinger, Björn, Masciovecchio, Claudio, and Bencivenga, Filippo

Abstract

The characterization of thermal and elastic properties at the nanometer length scale is fundamental for the implementation of materials in nanotechnology. Here, we show how four-wave mixing of extreme ultraviolet ultrashort pulses allows for high-precision measurements of nanoscale elasticity in thin suspended silicon nitride membranes through the generation and detection of Lamb waves at 10's of nm wavelengths. Our approach is contact-free and nondestructive, and it provides an estimate of both shear and longitudinal elastic moduli, without the need of nanopatterning. The data provide important information on nanoscale thermal transport and reveal a heat carrier behavior compatible with the diffusive regime. By controlling the fluence of the free-electron laser excitation pulses, we study the dependence of elastic moduli and the thermal relaxation rate on the sample temperature, which increases by hundreds of kelvins due to radiation absorption. At the same time, the experimental data allow us to estimate the characteristic time of phonon attenuation. The capability of determining this parameter, as well as the elastic moduli, at nanoscale wavelengths is a key aspect for the fundamental understanding of solids without translational invariance. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

3. A novel approach in the free-electron laser diagnosis based on a pixelated phosphor detector.

Author

Matruglio, Alessia, Dal Zilio, Simone, Sergo, Rudi, Mincigrucci, Riccardo, Svetina, Cristian, Principi, Emiliano, Mahne, Nicola, Raimondi, Lorenzo, Turchet, Alessio, Masciovecchio, Claudio, Lazzarino, Marco, Cautero, Giuseppe, and Zangrando, Marco

Subjects
FREE electron lasers, DETECTORS, SOFT X rays
Abstract

A new high-performance method for the free-electron laser (FEL) focused beam diagnosis has been successfully tested at the FERMI FEL in Trieste, Italy. The novel pixelated phosphor detector (PPD) consists of micrometric pixels produced by classical UV lithography and dry etching technique, fabricated on a silicon substrate, arranged in a hexagonal geometry and filled with suitable phosphors. It has been demonstrated that the overall resolution of the system has increased by reducing the diffusion of the light in the phosphors. Various types of PPD have been produced and tested, demonstrating a high resolution in the beam profile and the ability to measure the actual spot size shot-to-shot with an unprecedented resolution. For these reasons, the proposed detector could become a reference technique in the FEL diagnosis field. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

4. Multipurpose end-station for coherent diffraction imaging and scattering at FERMI@Elettra free-electron laser facility.

Author

Capotondi, Flavio, Pedersoli, Emanuele, Bencivenga, Filippo, Manfredda, Michele, Mahne, Nicola, Raimondi, Lorenzo, Svetina, Cristian, Zangrando, Marco, Demidovich, Alexander, Nikolov, Ivaylo, Danailov, Miltcho, Masciovecchio, Claudio, and Kiskinova, Maya

Subjects
DIFFRACTION patterns, GRAPHICAL projection, COHERENT radiation, FERMI energy, SOFT X rays
Abstract

The Diffraction and Projection Imaging (DiProI) beamline at FERMI, the Elettra free-electron laser (FEL), hosts a multi-purpose station that has been opened to users since the end of 2012. This paper describes the core capabilities of the station, designed to make use of the unique features of the FERMI-FEL for performing a wide range of static and dynamic scattering experiments. The various schemes for time-resolved experiments, employing both soft X-ray FEL and seed laser IR radiation are presented by using selected recent results. The ongoing upgrade is adding a reflection geometry setup for scattering experiments, expanding the application fields by providing both high lateral and depth resolution. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

5. Experimental setups for FEL-based four-wave mixing experiments at FERMI

Author

Paolo Sigalotti, R. Godnig, Giulio Gaio, G. Kurdi, C. Fava, Emanuele Pedersoli, L. Pivetta, Roberto Passuello, Alessandro Gessini, Filippo Bencivenga, Marco Lonza, Miltcho B. Danailov, Pietro Parisse, Riccardo Cucini, Martin Scarcia, G. Loda, Marco Zangrando, Riccardo Mincigrucci, R. Gobessi, Emiliano Principi, Michele Manfredda, M. Zaccaria, F. Giacuzzo, Simone Gerusina, Cristian Svetina, Andrea Battistoni, Flavio Capotondi, Alexander Demidovich, Roberto Sauro, A. Abrami, Milan Prica, Riccardo Grisonich, Ilaria Rago, G. Pangon, Nicola Mahne, Lorenzo Raimondi, Roberto Borghes, Maya Kiskinova, F. Dallari, Claudio Masciovecchio, Bencivenga, Filippo, Zangrando, Marco, Svetina, Cristian, Abrami, Alessandro, Battistoni, Andrea, Borghes, Roberto, Capotondi, Flavio, Cucini, Riccardo, Dallari, Francesco, Danailov, Miltcho, Demidovich, Alexander, Fava, Claudio, Gaio, Giulio, Gerusina, Simone, Gessini, Alessandro, Giacuzzo, Fabio, Gobessi, Riccardo, Godnig, Roberto, Grisonich, Riccardo, Kiskinova, Maya, Kurdi, Gabor, Loda, Giorgio, Lonza, Marco, Mahne, Nicola, Manfredda, Michele, Mincigrucci, Riccardo, Pangon, Gianpiero, Parisse, Pietro, Passuello, Roberto, Pedersoli, Emanuele, Pivetta, Lorenzo, Prica, Milan, Principi, Emiliano, Rago, ILARIA, CARMELA, Raimondi, Lorenzo, Sauro, Roberto, Scarcia, Martin, Sigalotti, Paolo, Zaccaria, Maurizio, and Masciovecchio, Claudio

Subjects
Nuclear and High Energy Physics, 02 engineering and technology, Grating, Inelastic scattering, 01 natural sciences, law.invention, Four-wave mixing, Optics, free-electron laser, law, 0103 physical sciences, non-linear optic, 010306 general physics, Instrumentation, Nuclear and High Energy Physic, Physics, Radiation, business.industry, four-wave-mixing, free-electron lasers, non-linear optics, transient grating, Nonlinear optics, 021001 nanoscience & nanotechnology, Laser, Beamline, Transient (oscillation), 0210 nano-technology, business, Fermi Gamma-ray Space Telescope
Abstract

The recent advent of free-electron laser (FEL) sources is driving the scientific community to extend table-top laser research to shorter wavelengths adding elemental selectivity and chemical state specificity. Both a compact setup (mini-TIMER) and a separate instrument (EIS-TIMER) dedicated to four-wave-mixing (FWM) experiments has been designed and constructed, to be operated as a branch of the Elastic and Inelastic Scattering beamline: EIS. The FWM experiments that are planned at EIS-TIMER are based on the transient grating approach, where two crossed FEL pulses create a controlled modulation of the sample excitations while a third time-delayed pulse is used to monitor the dynamics of the excited state. This manuscript describes such experimental facilities, showing the preliminary results of the commissioning of the EIS-TIMER beamline, and discusses original experimental strategies being developed to study the dynamics of matter at the fs-nm time-length scales. In the near future such experimental tools will allow more sophisticated FEL-based FWM applications, that also include the use of multiple and multi-color FEL pulses. © 2016 International Union of Crystallography.

Published
2015

6. Multi-colour pulses from seeded free-electron-lasers: Towards the development of non-linear core-level coherent spectroscopies

Author

F. Dallari, Miltcho B. Danailov, Filippo Bencivenga, Michele Manfredda, Maya Kiskinova, Emanuele Pedersoli, Daniele Fausti, Claudio Masciovecchio, F. Casolari, Giovanni De Ninno, Flavio Capotondi, Bencivenga, Filippo, Capotondi, Flavio, Casolari, Francesco, Dallari, Francesco, Danailov, Miltcho B., DE NINNO, Giovanni, Fausti, Daniele, Kiskinova, Maya, Manfredda, Michele, Masciovecchio, Claudio, and Pedersoli, Emanuele

Subjects
Diffraction, Physics, Free electron model, business.industry, Lasers, Spectrum Analysis, X-Rays, Free-electron laser, Physics::Optics, Electrons, Laser, Fluence, law.invention, Optics, law, Extreme ultraviolet, Physics::Accelerator Physics, Optoelectronics, Physical and Theoretical Chemistry, business, Ultrashort pulse, Excitation
Abstract

We report on new opportunities for ultrafast science thanks to the use of two-colour extreme ultraviolet (XUV) pulses at the FERMI free electron laser (FEL) facility. The two pulses have been employed to carry out a pioneering FEL-pump/FEL-probe diffraction experiment using a Ti target and tuning the FEL pulses to the M2/3-edge in order to explore the dependence of the dielectric constant on the excitation fluence. The future impact that the use of such a two-colour FEL emission will have on the development of ultrafast wave-mixing methods in the XUV/soft X-ray range is addressed and discussed.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results