Vittorio Degiorgio

Bio data: born in 1939

Education: laurea in Nuclear Engineering, Politecnico di Milano, 1963

Libera docenza in Physics, 1970

Positions held:

- from 1981, full professor of Quantum Electronics, Università di Pavia

- from 1967 to 1981, researcher of the National Council of Research operating at CISE Labs, Milano

- from 1968 to 1969, visiting scientist at the Materials Science Center, MIT, Cambridge, MA, USA

- Director of the Quantum Electronics Group of the National Research Council, Italy, from 1975 to 1982.

- Director of the Ph.D. School in Electronic Engineering at the University of Pavia from 1985 to 1991.

- Director of the Pavia Unit of the National Institute for the Physics of Matter (INFM), vice-president of the Scientific Council of INFM from 1987 to 1993, vice-president of INFM from 1998 to 2001.

- Head of the Department of Electronics at the University of Pavia from 1991 to 1997.

- Member of the Editorial Board of "Molecular Physics", “Journal of Physics Condensed Matter”, “Colloids and Surfaces”

- Member of the Liquids Board of the Condensed Matter Division of the European Physical Society from 1993 to 1999

Research activity:

Statistical Properties of Laser Radiation

Laser Physics

Laser Light Scattering

Light Scattering and Small-Angle Neutron Scattering Study of Aggregation Phenomena and Phase Transitions in Micellar and Colloidal Solutions

Kerr Effect in Critical Systems and Polymer Solutions

Nonlinear Optical Properties of Semiconductor-Doped Glasses and Organic Crystals

Nonlinear interactions in Waveguides and Optical Fibers

Affiliations:

- Optical Society of America

- Societa’ Italiana di Fisica

- European Physical Society

Publications:

- author / co-author of more than 160 research papers

- co-editor of 4 books

Publications since 1995:

M. Carpineti, M. Giglio, and V. Degiorgio

"Mass conservation and anti-correlation effects in colloidal aggregation of dense solutions"

Physical Review E 51, 590-596 (1995)

F. Mantegazza, M.E. Giardini, V. Degiorgio, D. Asnaghi, and M. Giglio

"Electric birefringence study of reaction-limited colloidal aggregation"

Journal of Colloid and Interface Science 170, 50-56 (1995)

M.E. Giardini, I. Cristiani, R. Piazza, and V. Degiorgio

"Apparatus for time-resolved measurements of acoustic birefringence in particle dispersions"

Review of Scientific Instruments 66, 1077-1082 (1995)

G.P. Banfi, V. Degiorgio, and H. Tan

"Optical nonlinearity of semiconductor-doped glasses at frequencies below band-gap: the role of free carriers"

Journal of the Optical Society of America B 12, 621-628 (1995)

V. Degiorgio and G.P. Banfi

"Fabrication, characterization and below-band-gap optical nonlinearities of semiconductor-doped glasses"in "Nonlinear Optical Materials: Principles and Applications", edited by V. Degiorgio and C. Flytzanis, IOS Press, Amsterdam, 1995, p.267-287.

G.P. Banfi, V. Degiorgio, D. Fortusini, and H.M. Tan

"Third-order nonlinearity of semiconductor doped glasses at frequencies below band gap"

Applied Physics Letters 67, 13-15 (1995)

V. Degiorgio, T. Bellini, and F. Mantegazza

"Measurements of the persistence length of flexible polyelectrolytes"

International Journal of Polymer Analysis and Characterization 2, 83-93 (1995)

V. Degiorgio, R. Piazza, and R.B. Jones

"Rotational diffusion in concentrated colloidal dispersions of hard spheres"

Physical Review E 52, 2707-2717 (1995)

T. Bellini, V. Degiorgio, F. Mantegazza, F. Ajmone Marsan, and C. Scarnecchia

"Electrokinetic properties of colloids of variable charge. I: electrophoretic and electro-optic characterization"

Journal of Chemical Physics 103, 8228-8237 (1995)

V. Degiorgio and R. Piazza

"Light scattering in colloid and interface science"

Current Opinion in Colloid & Interface Science 1, 11-16 (1996)

G.P. Banfi, V. Degiorgio, D. Fortusini, and H.M. Tan

"Below-band-gap nonlinear optical properties of semiconductor-doped glasses"

Journal of Nonlinear Optical Physics and Materials 5, 205-222 (1996)

V. Degiorgio, R. Piazza, and G. Di Pietro

"Depletion interaction and phase separation in mixtures of colloidal particles and nonionic micelles"

Progress in Colloid & Polymer Science 100, 201-205 (1996)

G.P. Banfi, V. Degiorgio, D. Fortusini, and M. Bellini

"Measurement of two-photon absorption of semiconductor nanocrystals by using tunable femtosecond pulses"

Optics Letters 21, 1490-1492 (1996)

R.Piazza and V. Degiorgio

"Rotational diffusion of hard spheres: forward depolarized light-scattering measurements and comparison to theory and simulation"

Journal of Physics Condensed Matter 8, 9497-9502 (1996)

V. Degiorgio, T. Bellini, R. Piazza, and F. Mantegazza

"Forward depolarized light scattering: heterodyne versus homodyne detection"

Physica A 235, 279-290 (1997)

V. Degiorgio, T. Bellini, R. Piazza, and F. Mantegazza

"Depolarized forward light scattering from anisotropic particles"

Progress in Colloid & Polymer Science 104, 17-22 (1997)

V. Degiorgio, R. Piazza, T. Bellini, and F. Mantegazza

"Dynamic depolarized light scattering study of anisotropic Brownian particles"

in "Light Scattering and Photon Correlation Spectroscopy", edited by E.R. Pike and J.B. Abbiss, Kluwer, Amsterdam, 1997, p.7-21.

G.P. Banfi, V. Degiorgio, and D. Ricard

"Non-resonant optical nonlinearities of semiconductor nanocrystals"

Advances in Physics 47, 447-510 (1998)

T. Bellini, V. Degiorgio, and F. Mantegazza

"The electric birefringence of polyelectrolytes: an electrokinetic approach"

Colloids & Surfaces A: Physicochemical and Engineering Aspects 140, 103-117 (1998)

A.V. Delgado, F. Carrique, F.J. Arroyo, T. Bellini, F. Mantegazza, M.E. Giardini, and V. Degiorgio

"Frequency dependence of the dielectric and electro-optic response in suspensions of charged rod-like colloidal particles"

Colloids & Surfaces A: Physicochemical and Engineering Aspects 140, 157-167 (1998)

T. Bellini, N.A. Clark, V. Degiorgio, F. Mantegazza, and G. Natale

"Light-scattering measurement of the nematic correlation length in a liquid crystal with quenched disorder"

Physical Review E 57, 2996-3006 (1998)

F. Mantegazza, V. Degiorgio, M. E. Giardini, A. L. Price, D. C. Steytler, and B. H. Robinson

"Transient electric birefringence study of rod-shaped water-in-oil microemulsions"

Langmuir 14, 1-7 (1998)

V. Degiorgio and R. Piazza

"Light scattering and electric birefringence experiments on micellar solutions"

in "Phase Transitions in Complex Fluids", edited by P. Toledano and A.M. Figuereido-Neto, 1998, p. 57-79.

G.P. Banfi, V. Degiorgio, and D. Fortusini

"Two-photon absorption coefficient measurements based on widely tunable femtosecond pulses from parametric generation"

Pure and Applied Optics 7, 361-372 (1998)

G. P. Banfi, P.K. Datta, V. Degiorgio, G. Donelli, D. Fortusini, and J. N. Sherwood

"Frequency shifting through cascaded second-order processes in a N-(4-nitrophenyl)-L-prolinol crystal"

Optics Letters 23, 439-441 (1998)

P.K. Datta, D. Fortusini, G. Donelli, G. P. Banfi, V. Degiorgio, J. N. Sherwood, and G.C. Bhar

"Measurement and prediction of phase-matching conditions in the nonlinear optical crystal N-(4-nitrophenyl)-L-prolinol"

Optics Communications 149, 331-334 (1998)

R. Piazza, V. Degiorgio, M.J. Eghan, and V. Peyre

"Light scattering investigation of amphiphile and polymer adsorption on the surface of colloidal particles with low optical contrast"

Progress in Colloid & Polymer Science 110, 89-93 (1998)

G. P. Banfi, P.K. Datta, V. Degiorgio, and D. Fortusini

"Wavelength shifting and amplification of optical pulses through cascaded second-order processes in periodically poled lithium niobate”

Applied Physics Letters 73, 136-138 (1998)

R. Piazza, V. Peyre, and V. Degiorgio

“Sticky hard spheres model of proteins near crystallization: A test based on the osmotic compressibility of lysozyme”

Physical Review E 58, R2733-2736 (1998)

F. Mantegazza, T. Bellini, V. Degiorgio, A.V. Delgado, and F.J. Arroyo

“Electrokinetic properties of colloids of variable charge: II. electric birefringence versus dielectric properties”

Journal of Chemical Physics 109, 6905-6910 (1998)

G.P. Banfi, P.K. Datta, V. Degiorgio, D. Fortusini, E.E.A. Shepherd, and J.N. Sherwood

“Low-power frequency conversion through parametric interaction and cascaded processes in a N-(4-nitrophenyl)-L-prolinol crystal”

Chemical Physics 245, 345-357 (1999)

G.P. Banfi, P.K. Datta, I. Cristiani, D. Fortusini, V. Degiorgio, and J.N. Sherwood

“Second order cascaded frequency shifting and signal amplification in organic and inorganic crystals”

Proceedings SPIE 3666, 618-625 (1999)

T. Bellini, F. Mantegazza, V. Degiorgio, R. Avallone, and D.A. Saville

"Electric polarizability of polyelectrolytes: Maxwell-Wagner and electrokinetic relaxation"

Physical Review Letters 82, 5160-5163 (1999)

I. Cristiani, G.P. Banfi, V. Degiorgio, and L. Tartara

"Wavelength shifting of optical pulses through cascaded second-order processes in a lithium-niobate channel waveguide"

Applied Physics Letters 75, 1198-2000 (1999)

M. Buscaglia, T. Bellini, V. Degiorgio, F. Mantegazza, and F. Simoni

"Non-linear dynamics of the electro-optic response of confined liquid crystals"

Europhysics Letters 48, 634-640 (1999).

I. Cristiani, M. Rini, A. Rampulla, G.P. Banfi, and V. Degiorgio

"Wavelength conversion of an infrared signal through cascaded second-order nonlinearity in a lithium-niobate channel waveguide"

Journal of Nonlinear Optical Physics and Materials 9, 11-20 (2000).

G.P. Banfi, I. Cristiani, and V. Degiorgio

"Wavelength shifting by cascaded second-order processes"

Journal of Optics A: Pure and Applied Optics 2, 260-267 (2000).

M. Rini, I. Cristiani, and V. Degiorgio

"Numerical modeling and optimization of cascaded CW Raman fiber laser"

IEEE Journal of Quantum Electronics 36, 1117-1122 (2000)

F. Mantegazza, T. Bellini, M. Buscaglia, V. Degiorgio, and D.A. Saville

"Electrokinetic properties of colloids of variable charge. III. Observation of a Maxwell-Wagner relaxation mechanism by high-frequency electric birefringence spectroscopy"

Journal of Chemical Physics 113, 6984-6991 (2000)

D.A. Saville, T. Bellini, V. Degiorgio, and F. Mantegazza

“An extended Maxwell-Wagner theory for the electric birefringence of charged colloids”

Journal of Chemical Physics 113, 6974-6983 (2000)

R. Ramponi, V. Russo, M. Marangoni, R. Osellame, G.P. Banfi, V. Degiorgio, Cristiani, L. Tartara,

"Cascaded second-order processes for frequency-shifting in planar Ti:LiNbO₃ waveguides"

in: “Integrated Optics Devices IV”, G.C. Righini and S. Honkanen eds., SPIE vol. P-3936, Washington D.C) 267-274 (2000).

M. Rini, G.P. Banfi, V. Degiorgio, and J.N. Sherwood

"Phase-matching properties of the organic crystal (S)-3-Methyl-5-nitro-N-(1-phenylethyl)-2-pyridinamine"

Nonlinear Optics 25, 289-295 (2000)

I. Cristiani, C. Liberale, V. Degiorgio, G. Tartarini, and P. Bassi

"Nonlinear Characterization and Modeling of Periodically Poled Lithium Niobate Waveguides for 1.5-mm-Band Cascaded Wavelength Conversion"

Optics Communications 187, 263-270 (2001)

V. Degiorgio, T. Bellini, and F. Mantegazza

"The electric birefringence of polyelectrolytes. Maxwell-Wagner and electrokinetic relaxation"

Colloids and Surfaces A 183-185, 183-190 (2001)

Cristiani, L. Tartara, G.P. Banfi, V. Degiorgio

“Ultrashort-pulse investigation of the propagation properties of the LP₁₁ mode in 1.55-mm communication fibers”

Optics Letters 26, 1758-1760 (2001)

G.P. Banfi, V. Degiorgio, and J.N. Sherwood

“Frequency conversion processes in the nonlinear organic crystal N-(4-nitrophenyl)-L-prolinol”

Synthetic Metals 124, 221-225 (2002)

I. Cristiani, V. Degiorgio, L. Socci, F. Carbone, and M. Romagnoli

“Polarization-insensitive wavelength conversion in a lithium niobate waveguide by the cascading technique”

IEEE Photonics Technology Letters 14, 669-671 (May 2002)

M. Rini, I. Cristiani, V. Degiorgio, A.S. Kurkov, and V.M. Paramonov

“Experimental and numerical optimization of a fiber Raman laser”

Optics Communications 203, 139-144 (2002)

C. Liberale, I Cristiani, L. Razzari, and V. Degiorgio

“Numerical study of cascaded wavelength conversion in quadratic media”

Journal of Optics A: Pure and Applied Optics 4, 1-6 (2002)

L. Tartara, I Cristiani, V. Degiorgio, F. Carbone, D. Faccio, M. Romagnoli

“Nonlinear propagation of ultrashort laser pulses in a microstructured fiber”

Journal of Nonlinear Optical Physics and Materials 11(4), 409-419 (2002)

T. Taima, K. Komatsu, T. Kaino, C.P. Franceschina, L. Tartara, G.P. Banfi, and V. Degiorgio

“Third-order nonlinear optical properties of 2-adamantylamino-5-nitropyridine caused by cascaded second-order nonlinearity”

Optical Materials 21, 83-86 (2003)

L. Tartara, I. Cristiani, V. Degiorgio, F. Carbone, D. Faccio, M. Romagnoli, and W. Belardi

“Phase-matched nonlinear interactions in a holey fiber induced by infrared super-continuum generation”

Optics Communications 215, 191-197 (2003)

L. Tartara, I. Cristiani, V. Degiorgio

“Blue light and infrared continuum generation by soliton fission in microstructured fibers”

Applied Physics B (2003)

M. Prasciolu, D. Cojoc, S. Cabrini, L. Businaro, P. Candeloro, M. Tormen, R. Kumar, C. Liberale, V. Degiorgio, A. Gerardino, G. Gigli, D. Pisignano, E. Di Fabrizio, and R. Cingolani

“Design and fabrication of on-fiber diffractive elements for fiber-waveguide coupling by means of e-beam lithography”

Microelectronic Engineering 67-68, 167-174 (2003)

C. Liberale, L. Tartara, I. Cristiani, M. Cartasegna, and V. Degiorgio

“Measurement of the nonlinear coefficient of optical fibers by femtosecond pulses and spectral interferometry”

IEEE Photonics Technology Letters 15, 1123-1125 (2003)

M. Prasciolu, P. Candeloro, R. Kumar, L. Businaro, E. Di Fabrizio, D. Cojoc, S. Cabrini, C. Liberale, and V. Degiorgio

“Fabrication of Diffractive Optical Elements on-fiber for Photonic Applications by Nanolitography”

Japanese Journal of Applied Physics 42, 4177-4180 (2003)