Nonlinear optics and optoelectronics Lab - Gaetano Assanto

Gaetano Assanto
	Room n°63 Department of Electronic Engineering University of Rome "Roma Tre" Via della Vasca Navale, 84 - 00146 - Roma - Italy tel. +39 06 5733 7028 fax +39 06 5733 7101 mobile +39 329 0571 045 e-mail: assanto@uniroma3.it
Curriculum Vitae Gaetano Assanto (1981 MSc in EE from the University of Palermo and 1987 PhD in ECE) in 1987-1988 was Research Engineer with the Center for Electronic Research in Sicily, from 1988 to 1990 Research Associate with the Optical Sciences Center at the University of Arizona, from 1990 to 1992 Research Scientist with the Center for Research in Electro Optics and Lasers at the University of Central Florida. Since November 1st, 1992 Dr. Assanto is professor of Optoelectronics with the Department of Electronic Engineering of the University of Rome "Roma Tre". His current interests are in nonlinear effects (parametric, Kerr-like, reorientational, thermo-optic) for all-optical signal processing and light localization, as well as Si-Ge heterostructures and optoelectronics for near-infrared photodetection. Dr. Assanto is a Fellow of the Optical Society of America (OSA), member of the International Society for Optical Engineering (SPIE), the IEEE Lasers and Electro-Optics Society (IEEE-LEOS), the National Institute for Nuclear Physics (INFN), the Executive Committee of the Italian LEOS Chapter, the Editorial Board of Laser Physics Review. He is a topical editor for the Journal of the Optical Society of America B and the chairman of the IEEE-LEOS Technical Committee in Nonlinear Optics.
Teaching Optoelectronics
Publications 2010 Random quasi-phase-matched second-harmonic eneration in periodicaly poled lithium tantalate Opt. Lett. 35, 363-365 (2010) Nonlinear disorder mapping through three-wave mixing IEEE Photonics Journal 2, 18-28 (2010) Soliton steering by longitudinal modulation of the nonlinearity in waveguide arrays Phys. Rev. Lett. 104 (5), 053903 (2010) Nematicon All-optical control in liquid crystal light valves Opt. Lett 35 (3), 390-2 (2010) Counterpropagating nematicons in bias-free liquid crystals Opt. Express 18 (4), 3258-3263 (2010) Soliton self-deflection via power-dependent walk-off Appl. Phys. Lett. 96, 061105 (2010) Germanium on insulator near-infrared photodetectors faricated by layer transfer Thin Solid Films 518, 2501 (2010) Soliton gating and switching in liquid crystal light valve Appl. Phys. Lett. 96, 071104 (2010) 2009 All-optical steering of soliton waveguides in dye doped liquid crystals Appl. Phys. Lett. 93, 171104 (2009) Collisionless shock resolution in nematic liquid crystals Phys. Rev. A 78 (6), 063808 (2009) Spatial solitons in liquid crystal light valves Opt. Lett. 34 (6), 737-739 (2009) Engineered quasi-phase matching for multiple parametric generation and pulse shaping Opt. Express 17 (5), 6765-6770 (2009) Voltage-driven in-plane steering of nematicons Appl. Phys. Lett. 94, 091106 (2009) Nematicons escaping a wide trapping potential: modulation theory Phys. Rev. A 79, 033837 (2009) Nematicons in twisted liquid crystals Photon. Lett. Pol. 1 (1), 7-9 (2009) Modulation analysis of boundary-induced motion of optical solitary waves in a nematic liquid crystal Phys. Rev. A 79, 043816 (2009) Analysis of temperature dependence of Ge-on-Si p-i-n photodetectors Physica E 41, 1086-1089 (2009) Guided-wave photodetectors in germanium on SOI optical chips Physica E 41, 1090-1093 (2009) Accessible ligth bullets via Synergetic Nonlinearities Phys. Rev. Lett. 102, 203903 (2009) Guided-wave photodetectors in Germanium on optical chips in Silicon-On-Insulator J. Europ. Opt. Soc. Rap. Public. 4, 09030 (2009) Quadratic Solitons in Non Collinear Quasi-Phase Matched Geometry Phys. Rev. A 80, 021801 (2009) Interaction of self-trapped beams in high index glass Opt. Express 17, 17150 (2009) Germanium-on-glass near-infrared detectors Electron. Lett. 45, 994 (2009) Liquid Crystal Light Valves: a versatile platform for Nematicons Photon. Lett. Pol. 1 (4), 151-153 (2009) Optical path control of solitary waves in dye-doped nematic liquid crystals Photon. Lett. Pol. 1 (4), 154-156 (2009) 2008 Efficient high-harmonic generation in engineered quasi-phase matching gratings Opt. Express 16, 18370-18375 (2008) Pulse shaping via Backward Second Harmonic Generation Opt. Express 16, 2115-2121 (2008) Parametric solitons in two-dimensional lattices of purely nonlinear origin Phys. Rev. Lett. 100, 053901 (2008) Transverse nonlinear optics in Heavy Metal Oxide Glass Phys. Rev. A 77, 043808 (2008) Spatial solitons in two-dimensional lattices of a nonlinear nature Opt. Photon. News 6, 29-32 (2008) All-optical isolation by directional coupling Opt. Lett. 33, 1641-1643 (2008) Ge-on-Si photodetectors for optical receivers Int. J. Microw. Opt. Techn. 3 (3), 404-11 (2008) Guiding and Bending Light at Will with Spatial Solitons in Liquid Crystals Int. J. Microw. Opt. Techn. 3 (3), 370-6 (2008) In-situ tuning of a photonic band-gap with laser pulses Appl. Phys. Lett. 93, 091111 (2008) Discrete Solitons in Optics Phys. Rep. 463 (1-3), 1 (2008) Temperature-Dependence of Ge on Si p–i–n Photodetectors J. Lightwave Techn. 26, 2211-2214 (2008) Near-Infrared p-i-n Ge-on-Si Photodiodes for Silicon Integrated Receivers J. Lightwave Techn. 26, 2954-2959 (2008) Near-infrared absorption of Germanium thin films on Silicon Appl. Phys. Lett. 93, 111115 (2008) Ultra-Violet Generation in Periodically Poled Lithium Tantalate Waveguides Appl. Phys. Lett. 93, 121117 (2008) Escaping Solitons from a trapping potential Phys. Rev. Lett. 101, 153902 (2008) Incoherent interaction of nematicons in biasfree liquid crystal cells J. Eur. Opt. Soc. 5, 10008--1-5 (2008) 2007 Near-infrared camera in polycrystalline germanium integrated on complementary-metal-oxide semiconductor electronics Appl. Phys. Lett. 90, 011103 (2007) Nonlinear shift of spatial solitons at a graded dielectric interface Opt. Lett. 32, 271-273 (2007) Nonlinear adiabatic evolution and emission of coherent Bloch waves in optical lattices Phys. Rev. A 75, 13626 (2007) Nonspecular total internal reflection of spatial solitons at the interface between highly birefringent media Phys. Rev. Lett. 98, 113902 (2007) A near infrared digital camera in polycrystalline Germanium integrated on Silicon IEEE J. Quantum Electron. 43, 311-315 (2007) Discrete optics in liquid crystalline lattices LEOS Newslett. 2, 11-16 (2007) Thin film Germanium on CMOS Silicon electronics for near infrared imaging Europhoton. 3, 28-30 (2007) Spatial solitons in nematic liquid crystals: from bulk to discrete Opt. Express 15, 5248-5259 (2007) Nonlinearly controlled angular momentum of soliton clusters Opt. Lett. 32, 1447-1449 (2007) Ultraviolet Quasi-Phase-Matched Second Harmonic Generation in Surface Periodically Poled Lithium Niobate Optical Waveguides Laser Phys. 17, 884-888 (2007) Routing light at will J. Nonl. Opt. Phys. & Mat. 16, 37-48 (2007) Nematicons across interfaces: anomalous refraction and reflection of solitons in liquid crystals Opt. Express 15, 8021-8028 (2007) Femtosecond pulse synthesis by efficient second-harmonic generation in engineered quasi phase matching gratings Opt. Express 15, 7448-7457 (2007) Guided-wave frequency doubling in surface periodically poled lithium niobate: competing effects J. Opt. Soc. Am. B 24, 1564-1570 (2007) Symmetry breaking instabilities in perturbed optical lattices: nonlinear non-reciprocity and "macroscopic" self-trapping Phys. Rev. A 75, 063828 (2007) Nonlinear management of the angular momentum of soliton clusters: Theory and experiment Phys. Rev. A 75, 063835 (2007) Germanium near infrared detector on Silicon-on-Insulator Appl. Phys. Lett. 91, 021107 (2007) Near-infrared spatial solitons in heavy metal oxide glasses Opt. Lett. 32, 2103-2105 (2007) Propagation of optical spatial solitons in finite size media: interplay between non locality and boundary conditions J. Opt. Soc. Am. B 24, 2314-2320 (2007) Tunable wavelength-selective add-drop in Liquid Crystals on Silicon microresonator Opt. Commun. 279, 210-213 (2007) Nonlinear bouncing of nonlocal spatial solitons at the boundaries Opt. Lett. 32, 2795-2797 (2007) Universal character of the discrete nonlinear Schrödinger equation Phys. Rev. A 76, 042108 (2007) Dissipative self-confined optical beams in doped nematic liquid crystals J. Nonl. Opt. Phys. & Mat. 16, 295-305 (2007) Compensating group-velocity mismatch in parametric frequency generation Opt. Lett. 32, 2921-2923 (2007) Spatial solitons in Chi2 planar photonic crystals Opt. Lett. 32, 3149-3151 (2007) Light induced angular steering via Floquet-Bloch band-tunneling in one-dimensional liquid crystalline photonic lattices Opto-Electronics Rev. 15, 210-214 (2007) Low Dark-Current Germanium-On-Silicon Near-Infrared Detectors IEEE Photon. Technol. Lett. 19, 1813 (2007) 2006 Waveguide photodetectors for the near infrared in polycristalline germanium on silicon IEEE Photon. Techn. Lett. 18, 1094-1096 (2006) Spatial Soliton All-Optical Logic Gates IEEE Photon. Techn. Lett. 18 , 1287-1289 (2006) Surface periodic poling in congruent lithium tantalate Electron. Lett. 42, 546-547 (2006) All-optical Landau-Zener tunneling in waveguide arrays Opt. Express 14, 2021-2026 (2006) Light propagation through a nonlinear defect: symmetry breaking and controlled soliton emission Opt. Lett. 31, 1489-1491 (2006) Nematicons and their angular steering J. Nonl. Opt. Phys. Mat. 15, 33-42 (2006) Ge on Si p-i-n photodiodes operating at 10Gbit/s Appl. Phys. Lett. 88, 101111 (2006) Optically induced Zener tunneling in one-dimensional lattices Opt. Lett. 31, 790-792 (2006) Governing soliton splitting in one-dimensional lattices Phys. Rev. E 73, 046603 (2006) Impedance matching in photonic crystal microcavities for second-harmonic generation Opt. Lett. 31, 250-252 (2006) Color-center waveguides in low-energy electron-bombarded lithium fluoride Appl. Phys. Lett. 88, 261111 (2006) Lithium niobate step-index waveguides for broadband second harmonic generation J. Nonl. Opt. Phys. 15, 191-202 (2006) Two-color vector solitons in nonlocal media Phys. Rev. Lett. 97, 153903 (2006) Quadratic phase matching in slot waveguides Opt. Lett. 31, 3146-3148 (2006) Dispersion spectroscopy of photonic lattices Opt. Lett. 31, 3351-3353 (2006) Si-based near infrared photodetectors operating at 10 Gbit/s J. Lumin. 121, 413-416 (2006) Discrete light propagation and self-localization in voltage-controlled arrays of channel waveguides in undoped nematic liquid crystals Mol. Cryst. Liq. Cryst. 453, 191-202 (2006) Tunable refraction and reflection of self-confined light beams Nature Phys. 2, 737-742 (2006) 2005 Integrated electro-optic switch in liquid crystals Opt. Express 13, 32-37 (2005) Spatially incoherent modulational instability in a non local medium Laser Phys. Lett. 2, 25-29 (2005) Optical multiband vector breathers in tunable waveguide arrays Opt. Lett. 30, 174-176 (2005) Observation of power-dependent walk-off via modulation instability in nematic liquid crystals Opt. Lett. 30, 2290-2292 (2005) Nonlinear AlGaAs waveguide for the generation of counterpropagating twin photons in the telecom range J. Appl. Phys. 98, 063102 (2005) Discrete light localization in one-dimensional nonlinear lattices with arbitrary nonlocality Phys. Rev. E 72, 066608 (2005)Form Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals Appl. Phys. Lett. 87, 261104 (2005) Spatial solitons and modulational instability in the presence of large birefringence: The case of highly nonlocal liquid crystals Phys. Rev. E 72, 066614 (2005) Integrated twin-photon sources for the silicon absorption band: a numerical study J. Opt. Soc. Am. B 22, 2331-2337 (2005) Guided-wave near-infrared detector in polycrystalline Germanium on Silicon Appl. Phys. Lett. 87, 203507 (2005) Electro-optic routing in a nematic liquid crystal waveguide Appl. Opt. 44, 4136-4143 (2005) Silica masks for improved surface poling of lithium niobate Electron. Lett. 41, 92-94 (2005) Non local incoherent spatial solitons in liquid crystals J. Opt. Soc. Am. B 22, 1371-1377 (2005) Nematic Liquid Crystal Waveguide Arrays Optoelectron. Rev. 13, 107-12 (2005) Self-healing generation of spatial solitons in liquid crystals Opt. Lett. 30, 1381-1383 (2005) Spectral evolution of an optical pattern in non local nematic liquid crystals Opt. Express 13, 6476-6481 (2005) Form birefringence phase matching in multilayer semiconductor structures: Tuning and tolerances IEEE J. Quantum Electron. 41, 1293-1302 (2005) Nonlinear all-optical switch with nematic liquid crystals Appl. Phys. Lett. 86, 51109-51111 (2005) All-optical switching and beam steering in tunable waveguide arrays Appl. Phys. Lett. 86, 51112-51114 (2005) Interplay between nonlocality and nonlinearity in nematic liquid crystals Opt. Lett. 30, 415-417 (2005) Discrete light propagation and self-trapping in liquid crystals Opt. Express 13, 1808-1815 (2005) Terahertz pulse generation via optical rectification in photonic crystal microcavities Opt. Lett. 30, 1174-1176 (2005) Transient-mode excitation, terahertz generation and wavelength shifting in a photonic band gap Appl. Phys. B 81, 415-420 (2005) Monolithic and hybrid near infrared detection and imaging based on poli-Ge photodiode arrays Opt. Mat. 27, 1079-1083 (2005) 2004 Transverse dynamics of nematicons Opt. Express 12, 6524-6529 (2004) Frequency generation within the forbidden band gap: All optical Rabi-like splitting in photonic crystals and microcavities Phys. Rev. E 70, 066614-1-5 (2004) Controlled transmission in the forbidden photonic bandgap via transient nonlinear states Opt. Lett. 29, 2902-2904 (2004) One dimensional transverse modulational instability in nonlocal media witha reorientational nonlinearity IEEE J. Sel. Top. Quantum Electron. 10, 862-869 (2004) Linear array of Si/Ge heterojunction photodetectors monolithically integrated with Silicon CMOS readout electronics IEEE J. Sel. Top. Quantum Electron. 10, 811-815 (2004) Routing of anisotropic spatial solitons and modulational instability in liquid crystals Nature 432, 733-737 (2004) Discrete optical solitons in nematic liquid crystals Mol. Cryst. Liq. Cryst. 421, 61-68 (2004) Spiraling and Cyclic Dynamics of Nematicons Mol. Cryst. Liq. Cryst. 421, 197-207 (2004) Highly non-local optical solitons and their observation in nematic liquid crystals Int. Mod. Phys. Lett. B 18, 2819-2828 (2004) Optical parametric oscillations in isotropic photonic crystals Opt. Express 12, 823-828 (2004) Observation of Optical Spatial Solitons in a Highly Nonlocal Medium Phys. Rev. Lett. 92, 113902 (2004) Photonic crystal wires for optical parametric oscillators in isotropic media Appl. Phys. B 79, 9-13 (2004) Bi-colour spatial solitons in linearly uncoupled planar waveguides J. Opt. B: Quantum Semiclass. Opt. 6, S217-S222 (2004) Parametric Oscillations in Photonic Crystal Slabs 3-D Time-Domain Analysis IEEE Photon. Techn. Lett. 16, 1495 (2004) Three-Dimensional Superprism Effect in Photonic-Crystal Slabs IEEE J. Lightwave Technol. 22, 1748 (2004) Discrete propagation and spatial solitons in nematic liquid crystals Opt. Lett. 29, 1530 (2004) Low-threshold spatial solitons in reverse-proton-exchanged periodically poled lithium niobate waveguides Opt. Lett. 29, 1778 (2004) Nonlinear Optics Basics: Cascading Encyclopedia of Modern Optics, vol. 3, 207-212 (2004) Nonlinear Optics Applications: Bright Spatial Solitons Encyclopedia of Modern Optics, Vol. 5, 43-55 (2004) Germanium on Silicon for light detection Encyclopedia of Nanoscience and Nanotechnology, Vol. 3, 829-842 (2004) Wavelength shifting in photonic bandgap microcavities with isotropic media Appl. Phys. Lett. 85, 4585-4587 (2004) 2003 Spatial solitons in nematic liquid crystals IEEE J. Quantum Electron. 39, 13-21 (2003) Novel Spatial Solitons in coupled Lithium Niobate Waveguides by Reverse Proton Exchange IEEE Photon. Techn. Lett. 15, 537-539 (2003) A germanium photodetector array for the near infrared monolithically integrated with silicon CMOS readout electronics Physica E 16, 614-619 (2003) Nematicons: optical spatial solitons in nematic liquid crystals Opt. Photon. News 14, 44-48 (2003) Spatial Optical Solitons in bulk Nematic Liquid Crystals Acta Phys. Pol. 103, 161-167 (2003) Second Harmonic Generation in coupled LiNbO3 waveguides by reverse proton exchange IEEE Photon. Techn. Lett. 15, 443-445 (2003) 2.5 Gbit/s polycristalline germanium on silicon photodetector operating from 1.3 to 1.55 micron Appl. Phys. Lett. 82, 2524-2526 (2003) Spatial optical simultons in nonlinearly coupled planar waveguides Opt. Lett. 28, 1031-1033 (2003) Route to Nonlocality and Observation of Accessible Solitons Phys. Rev. Lett. 91, 73901-3 (2003) Optical modulational instability in a nonlocal medium Phys. Rev. E 68, 025602 (2003) Nonlinear wave propagation and spatial solitons in nematic liquid crystals J. Nonl. Opt. Phys. Mat. 12, 123-134 (2003) Contraction of Aluminum Oxide Thin Layers in Optical Heterostructures Appl. Phys. Lett. 83, 2554-6 (2003) Optical multisoliton generation in nematic liquid crystals Opt. Lett. 28(22), 2231-2233 (2003) Nonlocal Optical Propagation in Nonlinear Nematic Liquid Crystals J. Nonl. Opt. Phys. Mat 12, 525-538 (2003) Wavelength stabilizer for telecommunication lasers: design and optimization J. Lightwave Techn. 21, 1749-1757 (2003) 2002 Solid State wavemeter with InGaAsP/InGaAs two-diode heterostructure Electron. Lett. 38, 735-737 (2002) Light Self-Confinement in Planar Cells with Nematic Liquid Crystals J. Commun. Technol. Electron. 47, 790-795 (2002) Coherent and Incoherent Spatial Solitons in Bulk Nematic Liquid Crystals Mol. Cryst. Liq. Cryst. 375, 617-629 (2002) Phase-Matching Engineering in Birefringent AlGaAs Waveguides for Difference Frequency Generation J. Lightwave Techn. 20, 651-660 (2002) Nematic Liquid Crystals: a suitable medium for self-confinement of Coherent and Incoherent Light Phys. Rev. E 65, 035603-035606 (2002) High performance germanium-on-silicon detectors for optical communications Appl. Phys. Lett. 81, 586-588 (2002) Characterization of AlGaAs/AlAs waveguides for optical parametric interactions J. Opt. Soc. Am. B 19, 902-910 (2002) Monolithic Integration of Near Infrared Ge Photodetectors with Si CMOS Readout Electronics Appl. Phys. Lett. 80, 3268-3270 (2002) Si-based optoelectronics for communications Mat. Sci. Engin. B89, 2-9 (2002) Wavelength stabilization of semiconductor lasers with a tunable photodetector Appl. Phys. Lett. 80, 3039-3041 (2002) Simple physics of quadratic spatial solitons Opt. Express 10, 388-396 (2002) All-optical switching and logic gating with spatial solitons in liquid crystals App. Phys. Lett. 81, 333-335 (2002) Nonlocal spatial soliton interactions in bulk nematic liquid crystals Opt. Lett. 27, 1460-1462 (2002) Self confinement of light in planar cells containing nematic liquid crystals Radiotekhnika I Electronika 47, 874-880 (2002) (in Russian) 2001 High performance p-i-n Ge on Si photodetectors for the near infrared: from model to demonstration IEEE Trans. Electron. Dev. 48, 1092-1096 (2001) Quadratic Simultons in linear and nonlinear photonic bandgaps J. Nonl. Opt. Phys. Mat. 10, 197-208 (2001) Efficient Frequency Doubling in Reverse Proton Exchanged Lithium Niobate Waveguides IEEE Photon. Techn. Lett. 13, 323-325 (2001) All-optical diode in a periodically-poled Lithium Niobate waveguide Appl. Phys. Lett. 79, 314-316 (2001) Near Infrared Waveguide Photodetectors Based On Polycrystalline Ge on SOI Substrates Opt. Mater. 17, 243-246, (2001) Birefringence evaluation in multimodal and multilayer AlGaAs/AlAs waveguides Appl. Phys. Lett. 78 , 1472-1474 (2001) Second Harmonic Generation in Reverse Proton Exchanged Lithium Niobate Waveguides Opt. Express 8, 232-237(2001) Signal readdressing by steering of spatial solitons in bulk Nematic Liquid Crystals Opt. Lett. 26, 1690-1692 (2001) Incoherent Spatial Solitary Waves in Nematic Liquid Crystals Opt. Lett. 26, 1791-1793 (2001) High Efficiency Photodetectors Based On High Quality Epitaxial Germanium Grown On Silicon Substrates Opt. Mater. 17, 71-73 (2001) Germanium thin films on silicon for detection of near-infrared light Handbook of Thin Films Materials, ed. H.S. Nalwa, Academic Press, (2001), p.327 2000 Efficient high-speed near-infrared Ge photodetectors integrated on Si substrates Appl. Phys. Lett. 76, 1231-1233 (2000) Cascading phase-shift and multivalued response in counterpropagating frequency nondegenerate parametric amplifiers Opt. Lett. 25, 966-968 (2000) Parametric Optical Solitons in Bragg Resonant Media J. Nonl. Opt. Phys. Mat. 9, 69-78 (2000) Optically Controlled Delay Lines by Pulse Self-Trapping in Parametric Waveguides with Distributed Feedback IEEE J. Quantum Electron. 36, 931-943(2000) Parametric gap solitons and chaos via second-harmonic generation in Bragg gratings Chaos 10, 590-599 (2000) Electrically Assisted Self-Confinement and Waveguiding in planar Nematic Liquid Crystal cells Appl. Phys. Lett. 77, 7-9 (2000) Energy localization in photonic crystals of a purely nonlinear origin Phys. Rev. Lett. 85, 2502-2505 (2000) Near infrared photodetectors based on <100> silicon substrates Phylos. Mag. B 80, 791-797 (2000) X-ray and optical characterization of multilayer AlGaAs waveguides Appl. Phys. Lett. 77, 3884-3886 (2000) A solid-state near infrared spectrum analyzer based on polycrystalline Ge on Si Mat. Sci. Semicon. Proc. 3 , 545-549 (2000) Germanium on Silicon p-i-n photodiodes for the near infrared Electron. Lett. 36, 2095-2096 (2000) 1999 Metal-Ge-Si heterostructures for near infrared light detection J. Vacuum Sci. Tech. B 17, 465-467 (1999) Unique properties of quadratic solitons Acta Phys. Pol. A 95, 691-704 (1999) Near infrared Wavemeter in Polycrystalline Germanium on Silicon Electron. Lett. 35, 1549-1551 (1999) Ge-on-Si approaches to the detection of near infrared light IEEE J. Quantum Electron. 35, 1843-1852 (1999) High responsitivity near infrared Ge photodetectors integrated on Si Electron. Lett. 35, 1467-1468 (1999) Cavityless oscillation through backward quasi-phase-matched second harmonic generation Opt. Lett. 24, 1139-1141 (1999) Self-sustained trapping mechanism of zero-velocity parametric gap solitons Phys. Rev. E 59, 2467-2469 (1999) All-optical diode based on second-harmonic generation in an asymmetric waveguide J. Opt. Soc. Am. B 16, 267-269 (1999) Analysis of Lithium Niobate All-Optical Wavelength Shifters for the Third Spectral Window J. Opt. Soc. Am. B 16, 741-753 (1999) Energy localization through Bragg gratings in quadratic media for second-harmonic generation Acta Phys. Pol. 95, 719-726 (1999) Routing switch based on a Silicon-on Insulator mode-mixer IEEE Phot. Techn. Lett. 11, 194-196 (1999) Advances in the field of poly-Ge on Si near infrared photodetectors Mat. Sci. Eng. B 69-70, 257-259 (1999) 1998 Voltage-tunable near Infrared photodetector: Versatile component for optical communication systems J. Vacuum Sci. Tech. B 16, 2619-2622 (1998) Robust generation, properties, and potential applications of quadratic spatial solitons generated by optical parametric amplification Opt. Quantum Electron. 30, 907-921 (1998) Metal-Semiconductor-Metal Near Infrared Light Detector Based on Epitaxial Ge/Si Appl. Phys. Lett. 72, 3175-3177 (1998) Three-wave simultons: quasi-particles in quadratic media J. Nonl. Opt. Phys. & Mat. 7, 345-368 (1998) Optical gap solitons via second-harmonic generation: exact solitary solutions Phys. Rev. E 57, R1251-R1254 (1998) Prism coupling into second-order nonlinear waveguides Opt. Commun. 146, 95-98 (1998) All-optical Mode Mixer Spatial Switch Based on Cascading in Lithium Niobate Appl. Phys. Lett. 72, 3405-3407 (1998) Interactions of type II vectorial spatial solitary waves in materials with quadratic nonlinearity Opt. Quantum Electron. 30, 923-935 (1998) Excitation of stable transverse wavepackets with quadratic and cubic susceptibilities Opt. Commun. 150, 390-398 (1998) Read/Write All-Optical Buffer by self-trapped Gap Simultons Electron. Lett. 34, 689-691 (1998) Phase-insensitive All-optical Transistors based on Second-order Nonlinearities IEEE J. Quantum Electron. 34, 666-672 (1998) Trapping of slowly-moving or stationary two-color gap solitons Opt. Lett. 23, 334-336 (1998) Multiple branching of vectorial spatial solitary waves in quadratic media Opt. Commun. 146, 356-362 (1998) Thin film devices for all-optical switching and processing via quadratic nonlinearities Thin Solid Films 331, 291-297 (1998) Parametric gap solitons in quadratic media Opt. Express 3, 389-404 (1998) 1997 Polarization multiplexed χ⁽²⁾ solitary waves interactions Opt. Lett. 22 , 1376-1378 (1997) Ge/Si (001) Photodetector for Near Infrared Light Solid State Phenomena 54, 55-58 (1997) Quadratic Spatial Soliton Generation By Seeded Down Conversion of a Strong Harmonic Pump Beam Opt. Lett. 22, 1683-1685 (1997) Excitation of self-transparency Bragg solitons in quadratic media Opt. Lett. 22, 1350-1352 (1997) Efficient Wavelength Shifting Over the Erbium Amplifier Bandwidth Via Cascaded Second Order Processes in Lithium Niobate Waveguides Appl. Phys. Lett. 7, 1020-1022 (1997) Voltage tunable SiGe photodetector: a novel tool for crypted optical communications through wavelength mixing Appl. Phys. Lett. 70, 3194-3196 (1997) Bloch Function Approach for parametric gap solitons Opt. Lett. 22, 445-447 (1997) Doubly resonant Bragg simultons via second-harmonic generation Phys. Rev. Lett. 78, 2341-2344 (1997) Intensity controlled interactions between vectorial spatial solitary waves in quadratic nonlinear media Opt. Lett. 22, 7-9 (1997) Beam pointing control with spatial solitary waves in quadratic nonlinear media Opt. Commun. 134, 223-226 (1997) Phase- and Polarization-Insensitive All-Optical Switching by Self-Guiding in Quadratic Media Opt. Lett. 22, 1391-1393 (1997) Bidimensional spatial solitary waves in quadratically nonlinear bulk media J. Opt. Soc. Am. B 14, 3134-3142 (1997) Collisional interactions of vectorial spatial solitary waves in type II frequency doubling media, J. Opt. Soc. Am. B 14, 3151-3161 (1997) Mode Interplay via Quadratic Cascading in a Lithium Niobate Waveguide for All-Optical Processing Opt. Quantum Electron. 29, 53-63 (1997) 1996 Phase-insensitive, Single wavelength, All-Optical transistor Based on second-Order nonlinearities Electron. Lett. 32, 1135-1136 (1996) All-optical switching by spatial walk-off compensation and solitary-wave locking Appl. Phys. Lett. 68, 1449-1451(1996) A versatile bistable gate via quadratic cascading in a Bragg periodic structure J. Opt. Soc. Am. B 13, 661-670 (1996) Soliton Polarization rotation and switching in type II second-harmonic generation Opt. Lett. 21, 1969-1971 (1996) All-optical switching via quadratic nonlinearities in a Mach-Zehnder Device with Soliton-like pulses Nonl. Opt. 16, 303-320 (1996) 1995 An analytical approach to all-optical modulation by cascading Opt. Lett. 20, 1686-1688 (1995) Transistor action through nonlinear cascading in Type II interactions Opt. Lett. 20, 1595-1597 (1995) Coherent interactions for all-optical signal processing via quadratic nonlinearities IEEE J. Quantum Electron. 31, 673-681 (1995) Second Harmonic Generation: towards an all-optical transistor Opt. Phot. News 13, Dec.1995 Ottica integrata non-lineare: una panoramica Alta Frequenza 7, 58 (1995) Guided-wave optical bistability through nonlinear cascading in a phase-matched distributed reflector Electron. Lett. 31, 1661-1662 (1995) Cascading effects in Type II second-harmonic generation: applications to all-optical processing Opt. Commun. 119, 143-148 (1995) All-optical Modulation via Nonlinear Cascading in Type II Second Harmonic Generation Appl. Phys. Lett. 67, 2120-2122 (1995) 1994 All-optical phase controlled amplitude modulator Electron. Lett. 30, 733-735 (1994) Polarization spatial chaos in second harmonic generation Opt. Lett. 19, 1825-1827 (1994) Phase Controlled Transistor Action by Cascading of Second-Order Nonlinearities Opt. Lett. 19, 1305-1307 (1994) All-Optical Switching via Second Harmonic Generation in a Nonlinearly Asymmetric Directional Coupler Opt. Commun. 110, 599-603 (1994) All-optical processing by means of Vectorial Interactions in Second-Order Cascading: Novel approaches Opt. Lett. 19, 1720-1722 (1994) 1993 Realization of Integrated Bragg Reflectors in DANS-polymer waveguides J. Lightwave Tech. 11, 1189-1195 (1993) All Optical Switching Devices Based on Large Nonlinear Phase Shifts from Second Harmonic Generation Appl. Phys. Lett. 62, 1323-1325 (1993) Large nonlinear phase shifts in second-order nonlinear optical processes Opt. Lett. 18, 13-15 (1993). 1992 Nonlinear Phase Shifts Using Second Order Nonlinearities Opt. Phot. News 3, 11 (1992) Third-order nonlinearities in organic polymers and the role of microscopic cascading of second-order hyperpolarizabilities Mol. Cryst. Liq. Cryst. 222, 33-43 (1992) Nonlinear optical probes of conjugated polymers Synth. Met. 49-50, 21-35 (1992) Integrated Bragg reflectors in polymeric channel waveguides Opt. Commun. 94, 326-330 (1992) 1991 Improved Coupled-Mode Analysis of Nonlinear Distributed Feedback Structures Opt. Quantum Electron. 23, 633-637 (1991) Interferometric determination of the linewidth enhancement factor of a 1.55µm GaInAsP optical amplifier Appl. Phys. Lett. 58, 816-818 (1991) Large, Non-resonant, Intensity Dependent Refractive Index of 4-dialkylamino-4-nitro-diphenyl-polyene Side Chain Polymers in Waveguides Appl. Phys. Lett. 58, 2613-2615 (1991) Guided-Wave optical Bistability in Indium Antimonide Thin Films IEEE J. Quantum Electron. 27, 809-816 (1991) Grating coupling of light pulses into third-order nonlinear waveguides J. Opt. Soc. Am. B 8, 553-561 (1991) 1990 All-Optical Nonlinear Integrated Devices J. Mod. Opt. 37, 855-873 (1990) Optical Bistability in Nonlocally Nonlinear Periodic Structures Appl. 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