The University of Insubria

		Fabio Ferri

	Contact data	Assistant Professor Department of Physics and Mathematics University of Insubria Via Valleggio, 11 22100 Como Tel: ++39 031 238 6226 (office) - 6251 (lab) Fax: 031 2386209 E-mail: fabio.ferri@uninsubria.it
	Biography	Born in Civitanova Marche (MC) Italy in 1957. He received his Diploma di Laurea in Physics in 1982 from University of Pisa, Italy ( tutor Prof. Erseo Polacco) defending the experimental thesis: "Resonance Raman scattering from CrO4= ion". During 1983-1987 he was a Ph.D. student in Physics, University of Milan, Italy ( tutor: Prof. Marzio Giglio) and defended the experimental thesis: "Light scattering from fractal clusters". In 1989-1991 worked as a Postdoctoral fellow in the Physics Department, University of California, USA collaborating with Prof. David S. Cannell and carrying out experiments on "structure of silica gels and demixing of a binary mixture in silica gels". In 1993 he won a permanent position as Researcher in Physics with the Department of Physics and Mathematics University of Insubria at Como, Italy. Since then, he has been working in the field of coherent optics and condensed matter, carrying out optical experiments on complex fluids, colloidal aggregation, polymeric gels, and developing new techniques for static and dynamic light scattering, and for particle sizing.
	Qualifications and awards	Responsible of the "Light Scattering Laboratory" at the Department of Physics and Mathematics in Como, Italy.
	Research interests	Research activity is fully illustrated in the web-page of the Light Scattering Laboratory: http://scienze-como.uninsubria.it/ferri/lab/light_scattering_laboratory.html A summary of the current research activities: Fibrin gels: structure and kinetics: Fibrin gels are biological networks of fundamental importance in blood coagulation and in other biomedical applications. They are grown from the polymerization of the macromolecule fibrinogen, after activation by the enzyme thrombin. We study the growth kinetics and the structure of fibrin gels by low-angle elastic light scattering, turbidimetry, and confocal microscopy, measuring their mesh-size, fractal dimension and fiber diameter. Software correlators: We have developed various software correlators suitable for for photon and fluorescence correlation spectroscopy. The correlators work by using standard acquisition hardware + home-made LabView software. Software correlators are cheap, flexible, and almost as fast as hardware correlators! The programs are protected by copyright and and are in the process of being commercialized. Ghost imaging: Ghost imaging is a technique which allows to do coherent imaging with incoherent light. By cross-correlating the stochastic far-field spatial distribution of two twin speckle beams (one of which passes trough the object), it is possible to recover the object diffraction pattern, the same that one would observe with coherent illumination. We carry our ghost imaging experiments on amplitude and phase objects, showing that this technique is intrinsically much more powerful than the classical Hanbury-Brown-Twiss method. Heterodyne Near Field Scattering Techniques: Heterodyne Near Field Scattering (HNFS) is a novel technique for studying the static and dynamic properties of systems whose dimensions are comparable with the wavelength of light. HNFS is an extremely valid alternative to traditional low-angle light scattering and, therefore, suitable for characterizing complex fluids. We use HNFS for studying colloidal aggregation and performing particle sizing and velocimetry. In the latter case the technique is called Heterodyne Speckle Velocimetry (HSV) because is based on the velocity of the heterodyne speckles generated by small tracking particles moving with the fluid. HSV provides 2D velocity mappings in the direction orthogonal to the optical axis and velocity distributions over the entire sample thickness. Droplet vaporization: We use low-angle elastic light scattering to study the vaporization rate of liquid droplets in a high-pressure environments. This topic is important for combustion science and technology because it affects significantly the efficiency of high-pressure combustion devices, such as liquid-propellant rockets, gas turbines and diesel engines.
	Teaching experience and appointments	Present-2002: responsible of the course "Laboratorio 5"of the 3rd year in Physics (Laurea triennale). Present-2002: responsible of the course "Physics" of the 1st year in Scienze dei Beni e delle Attivita' Culturali (Laurea triennale). Tutor of nearly 10 undergraduate students in Physics who defended their experimental thesis carried out at the "Light Scattering Laboratory" in Como. Lecturer of national and international Doctorate Schools at University of Milan - Italy, University of Stuttgart - Germany, University of Lausanne - Switzerland.
	Representative publications	M. Alaimo, D. Magatti, F. Ferri, and M.A.C. Potenza Heterodyne speckle velocimetry Appl. Phys. Lett., 88, (2006) 191101-1/3. M. Bache, D. Magatti, F. Ferri, A. Gatti, E. Brambilla, and L.A. Lugiato Coherent imaging of a pure phase object with classical incoherent light Phys. Rev. A, 73, (2006) 53802-1/12. A. Gatti, M. Bache, D. Magatti, E. Brambilla, F. Ferri, and L.A. Lugiato Coherent imaging with pseudo-thermal incoherent light J. Modern Optics, 53, (2006) 739-760 M.A.C. Potenza, M. Alaimo, D. Pescini, D. Magatti, F. Ferri, and M. Giglio A new technique for fluid velocimetry based on near field scattering Optics and Lasers in Engineering, 44, (2006) 722-731 M.A.C. Potenza, D. Pescini, D. Magatti, F. Ferri, and M. Giglio A new particle sizing technique based on near field scattering Nucler Physics B, 150, (2006) 334-338. F. Ferri, D. Magatti, A. Gatti, M. Bache, E. Brambilla, and L.A. Lugiato High-resolution ghost image and ghost diffraction experiments with thermal light Phys. Rev. Lett., 94, (2005) 180632-1/4. G. Lamanna, H. Sun, B. Weigand, D. Magatti, P. Micciche, and F. Ferri Measurements of droplet vaporization by means of means of light scattering Colloidal Surfaces A, 261, (2005) 153-161. F. Ferri, D. Magatti, D. Pescini, M.A.C. Potenza, and M. Giglio Heterodyne near field scattering: a technique for complex fluids Phys. Rev. E., 70, (2004) 41405-1/9. A. Profumo, M. Turci, G. Damonte, F. Ferri, D. Magatti, B. Cardinali, C. Cuniberti, and M. Rocco Kinetics of fibrinopetide release by thrombin as a function of CaCl2 concentration: different susceptability of FPA and FPB and evidence for a fibrinogen isoform specific effect at physiological Ca2+ concentration Biochemistry, 42, (2003) 12335 12348. F. Ferri and D. Magatti Hardware simulator for photon correlation spectroscopy Rev. Sci. Instrum., 74, (2003) 4273 4279. M. De Spirito, G. Arcovito, M. Papi, M. Rocco, and F. Ferri Small and wide angle elastic light scattering study of fibrin structure J. Appl. Cryst., 36, (2003) 636 641. D. Magatti and F. Ferri 25 ns software correlator for photon correlation spectroscopy Rev. Sci Instrum., 74, (2003) 1135 1144. F.Ferri, M.Greco, G.Arcovito, M.De Spirito, and M.Rocco Structure of fibrin gels studied by elastic light scattering techniques: Dependence of fractal dimension, gel crossover length, fiber diameter, and fiber density on monomer concentration Phys. Rev. E., 66, (2002) 11913/1 13. E.Paganini, F.Trespidi, and F.Ferri Instrument for long path spectral extinction measurements in air: application to sizing of airborne particles Applied Optics, 40, (2001) 4261 4274. D.Magatti and F.Ferri Fast multi tau real time software correlator for dynamic light scattering Applied Optics, 40, (2001) 4011 4021. F.Ferri, M.Greco, G.Arcovito, F.Andreasi Bassi, M.De Spirito, E.Paganini, and M.Rocco Growth kinetics and structure of fibrin gels Phys. Rev. E, 63, (2001) 31401/1 17. M.De Spirito, G.Arcovito, F.Andreasi Bassi, and F.Ferri On the dynamics of semiflexible fibrin gels Macromol. Symp., 162, (2000) 263-274. S.Bernocco, F.Ferri, A.Profumo, C.Cuniberti, and M.Rocco Polymerization of rod like macromolecular monomers studied by stopped flow, multiangle light scattering: set up, data processing, and application to fibrin formation Biophys. J., 79, (2000) 561 583. A.Bassini, S.Musazzi, E.Paganini, U.Perini, and F.Ferri Self aligning optical particle sizer for the monitoring of particles growth processes in industrial plants Rev. Sci. Instrum., 69, (1998) 2484 2494. F.Ferri, G.Righini, and E.Paganini Inversion of low angle elastic light scattering data with a new method devised by modifying the Chahine algorithm Applied Optics, 36, (1997) 7539 7550. F.Ferri Use of charge coupled device camera for low angle elastic light scattering Rev. Sci Instrum., 68, (1997) 2265 2274. F.Ferri, A.Bassini and E.Paganini Commercial spectrophotometer for particle sizing Applied Optics, 36, (1997) 885 891. B.J.Frisken, F.Ferri, and D.S.Cannell Studies of critical behavior in the presence of a disordered environment Phys. Rev. E, 51, (1995) 5922 5943. F.Ferri, A.Bassini and E.Paganini Modified version of the Chahine algorithm to invert spectral extinction data for particle sizing Applied Optics, 34, (1995) 5829 5839. D.S.Cannell, F.Ferri and B.J.Frisken Reply on a Comment on Structure of silica gels Phys. Rev. Lett., 71, (1993) 1475. F.Ferri, B.J.Frisken and D.S.Cannell Structure of silica gels Phys. Rev. Lett., 67, (1991) 3626 3629. B.J.Frisken, F.Ferri and D.S.Cannell Effect of dilute silica gel on phase separation of a binary mixture Phys. Rev. Lett., 66, (1991) 2754 2757. M.Carpineti, F.Ferri, M.Giglio, E.Paganini and U.Perini Salt induced fast aggregation of polystyrene latex Phys. Rev. A, 42, (1990) 7347 7354. F.Ferri, M.Giglio and U.Perini Inversion of light scattering data from fractals by means of the Chahine iterative algorithm Appl. Optics, 28, (1989) 3074 3082. F.Ferri, M.Giglio, E.Paganini and U.Perini Low angle elastic light scattering study of diffusion limited aggregation Europhys. Lett., 7, (1988) 599 604.

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