Femtosecond Covariance Spectroscopy

The success of non-linear optics relies largely on pulse-to-pulse consistency. In contrast, covariance based techniques used in photoionization electron spectroscopy and mass spectrometry have shown that wealth of information can be extracted from noise that is lost when averaging multiple measurements. Here, we apply covariance based detection to nonlinear optical spectroscopy, and show that noise in a femtosecond laser is not necessarily a liability to be mitigated, but can act as a unique and powerful asset. As a proof of principle we apply this approach to the process of stimulated Raman scattering in alpha-quartz. Our results demonstrate how nonlinear processes in the sample can encode correlations between the spectral components of ultrashort pulses with uncorrelated stochastic fluctuations. This in turn provides richer information compared to the standard non-linear optics techniques that are based on averages over many repetitions with well-behaved laser pulses. These proof-of-principle results suggest that covariance based nonlinear spectroscopy will improve the applicability of fs non-linear spectroscopy in wavelength ranges where stable, transform limited pulses are not available such as, for example, x-ray free electron lasers which naturally have spectrally noisy pulses ideally suited for this approach

Wayforlight : the Catalogue of European light sources

Wayforlight.eu is the gateway to find-ing the most suitable instruments for experiments with synchrotron, FEL, and laser light sources. The portal's main asset is a de-tailed searchable catalogue of facilities, beam-lines, and instrumentation available at Euro-pean light sources. Thanks to its advanced search tools, a visitor can filter beamlines by scientific discipline, by technique, but also by energy range or sample type

XRF topography information: Simulations and data from a novel silicon drift detector system

none22siThis work presents the latest findings of an ongoing research project where the angular dependence of XRF detection could be exploited for the topographical study of the specimen. It presents the results of a simulation framework and of measurements performed with a new detector system deployed on the TwinMic beamline (Elettra Sincrotrone Trieste, Trieste, Italy).noneKourousias, G.; Billè, F.; Cautero, G.; Bufon, J.; Rachevski, A.; Schillani, S.; Cirrincione, D.; Altissimo, M.; Menk, R.H.; Zampa, G.; Zampa, N.; Rashevskaya, I.; Borghes, R.; Gandola, M.; Picciotto, A.; Borghi, G.; Ficorella, F.; Zorzi, N.; Bellutti, P.; Bertuccio, G.; Vacchi, A.; Gianoncelli, A.Kourousias, G.; Billè, F.; Cautero, G.; Bufon, J.; Rachevski, A.; Schillani, S.; Cirrincione, D.; Altissimo, M.; Menk, R. H.; Zampa, G.; Zampa, N.; Rashevskaya, I.; Borghes, R.; Gandola, M.; Picciotto, A.; Borghi, G.; Ficorella, F.; Zorzi, N.; Bellutti, P.; Bertuccio, G.; Vacchi, A.; Gianoncelli, A

Wayforlight : the Catalogue of European light sources

Wayforlight.eu is the gateway to find-ing the most suitable instruments for experiments with synchrotron, FEL, and laser light sources. The portal's main asset is a de-tailed searchable catalogue of facilities, beam-lines, and instrumentation available at Euro-pean light sources. Thanks to its advanced search tools, a visitor can filter beamlines by scientific discipline, by technique, but also by energy range or sample type

Type 2 diabetes mellitus is associated with faster degeneration of bioprosthetic valve: results from a propensity score-matched Italian multicenter study

32The present study was aimed at determining the impact of type 2 diabetes mellitus (DM) on postoperative bioprosthetic structural valve degeneration.reservedmixedmixedLorusso R; Gelsomino S; Lucà F; De Cicco G; Billè G; Carella R; Villa E; Troise G; Viganò M; Banfi C; Gazzaruso C; Gagliardotto P; Menicanti L; Formica F; Paolini G; Benussi S; Alfieri O; Pastore M; Ferrarese S; Mariscalco G; Di Credico G; Leva C; Russo C; Cannata A; Trevisan R; Livi U; Scrofani R; Antona C; Sala A; Gensini GF; Maessen J; Giustina ALorusso, R; Gelsomino, S; Lucà, F; De Cicco, G; Billè, G; Carella, R; Villa, E; Troise, G; Viganò, M; Banfi, C; Gazzaruso, C; Gagliardotto, P; Menicanti, L; Formica, F; Paolini, G; Benussi, S; Alfieri, O; Pastore, M; Ferrarese, S; Mariscalco, G; Di Credico, G; Leva, C; Russo, C; Cannata, A; Trevisan, R; Livi, Ugolino; Scrofani, R; Antona, C; Sala, A; Gensini, Gf; Maessen, J; Giustina, A