Nonlinear optics and optoelectronics Lab - Gaetano Assanto

Gaetano Assanto
	Room n°63 Department of 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 After his EE MSc degree (with honors) at the Univ. of Palermo in 1981, in 8/1983 Gaetano Assanto entered the PhD program in ECE at the University of Palermo, then at the U. of Iowa and later at the University of Arizona. In 1/1985 he joined the Optical Sciences Center of the U. of Arizona as Research and Teaching Assistant in nonlinear integrated optics. He completed his Ph.D. in 12/1986. From 1/1987 to 7/1988 he was Research Engineer at the Center for Electronic Research in Sicily. In 7/1988 he joined the Univ. of Arizona as Research Scientist, and from 9/1990 to 10/1992 the Center for Research in Electro Optics and Lasers, Orlando, Florida as Senior Research Scientist. Since 11/1992 teaches Optoelectronics with the EE Dept.of the University of Rome "Roma Tre", where he has also given courses in Integrated Optics and Nonlinear Optics. Dr. Assanto has given his course of Optoelectronics also at the Univ. of Rome "Sapienza" and at the Univ. of Rome "Tor Vergata". In October 1999, thru a national selection, he qualified for a Full Professorship in Electronics. He is a Fellow of the OSA, Fellow of IEEE-Photonics Society, member of the association of Novel Optical Material and Application (NOMA), the Italian Society for Optics and Photonics (SIOF), the Italian Association for Electrotechnics (AEI), the Italian Institute of Physics of the Matter (INFM), the Italian Institute for Nuclear Physics (INFN), the Interuniversity Consortium for the Structure of Matter (CNISM), the Italian Group of Electronics (GE), the Italian Society for Liquid Crystals (SICL), the Italian Society for Optics and Photonics (SIOF), the European Optical Society (EOS) and the European Physical Society (EPS). He is/has been in the editorial board of the J. Optical Society of America B, IEEE Photonics Journal, Laser Physics Review, Trends in Applied Sciences Research, Research Letters in Optics, International J. of Optics, J. of Nonlinear Optical Physics and Materials (JNOPM), Photonics Letters of Poland, Optics Letters, Nature Scientific Reports. In 2009-2011 was an IEEE Distinguished Lecturer (two terms). He serves as Expert Evaluator for the European Union, the Academy of Science of Finland, the Romanian Academy of Sciences, the Italian Ministry for Education, the Italian-Israeli Foundation; he serves in scientific committees for international conferences such as CLEO-Europe, IQEC, IEEE-LEOS, SPIE, ICTON, NOA, NLGW, NLO etc. and is author/coauthor of more than 900 publications, contributed and invited papers in journals, books and conferences. .
Teaching Optoelectronics
Publications 2024 Nematonics: from physics to photonics of reorientational solitons Liquid Crystals Solitons, dispersive shock waves and Noel Fredrick Smyth Wave Motion 127, 103275 2023 Direction-dependent optical solitary waves in nematic liquid crystals Phys. Rev. A 108 (4), 053509 Nonreciprocal Propagation of Nematicons MDPI Photonics 10 (10), 1144 Efficient Third-Harmonic Generation by Inhomogeneous Quasi-Phase-Matching in Quadratic Crystals MDPI Photonics 10 (1), 76 2022 Optical isolation via direction-dependent soliton routing in birefringent soft matter Opt. Lett. 47 (11), 459564 Induced dark solitons by means of singular beams 2022 Conference on Lasers and Electro-Optics (CLEO) Interactions of Self-Localised Optical Wavepackets in Reorientational Soft Matter MDPI Appl. Sci. 12, 3668 2021 Multihump thermo-reorientational solitary waves in nematic liquid crystals: Modulation theory solutions Phys. Rev. A, 104 Light Confinement with Structured Beams in Gold Nanoparticle Suspensions Photonics, 8 (6) Scalar and vector supermode solitons owing to competing nonlocal nonlinearities Optics Express, 29 (6) Guiding light with singular beams in nanoplasmonic colloids Appl. Phys. Lett. 118 2020 Self-confined light waves in nematic liquid crystals Physica D: Nonlinear Phenomena, 402 Spin-optical solitons in liquid crystals Phys. Rev. A 102, 033501 Optothermal vortex-solitons in liquid crystals Opt. Lett. 45 (8), 2451 Vortex nematicons in planar cells Optics Express, 28 (6) 2019 Temperature control of nematicon trajectories Physical Review E, 100 Spatiospectral features of a soliton-assisted random laser in liquid crystals Optics Letters, 44 (14) Thermo-optic soliton routing in nematic liquid crystals: erratum Optics Letters, 44 (9) Self-confined light waves in nematic liquid crystals Nonl. Phenom. 402, 132182 (invited) Spatiospectral features of a soliton-assisted random laser in liquid crystals Opt. Lett. 44 (14), 3574-7 Electro-optic quenching of nematicon fluctuations Optics Letters, 44(1) 2018 Nematicons: reorientational solitons from optics to photonics Liquid Crystals Reviews, 6 (2) Mechanical analogies for nonlinear light beams in nonlocal nematic liquid crystals Journal of Nonlinear Optical Physics & Materials, 27 (4) Electro-optic steering of random laser emission in liquid crystals Photonics Letters of Poland, 10 (4) Electro-optic quenching of nematicon fluctuations Optics Letters, 44 (1) Interplay of Thermo-Optic and Reorientational Responses in Nematicon Generation Materials, 11(10) Near-Infrared Switching of Light-Guided Random Laser IEEE Photonics Journal, 10 (5) Accelerated optical solitons in reorientational media with transverse invariance and longitudinally modulated birefringence Phys. Rev. A 98, 023810 Thermo-optic soliton routing in nematic liquid crystals: erratum Opt. Lett. 43, 2296-2299 Nematicons: reorientational solitons from optics to photonics Liq. Cryst. Rev. 6 (2), 170-194 (Invited) Mechanical analogies for nonlinear light beams in nonlocal nematic liquid crystals J. Nonl. Opt. Phys. Mat. 27(4), 1850046 Electro-optic steering of random laser emission in liquid crystals Photon. Lett. Pol. 10 (4), 103-5 Interplay of Thermo-Optic and Reorientational Responses in Nematicon Generation Materials, 11(10), 1837 Near-Infrared Switching of Light-Guided Random Laser IEEE Photonics Journal, 10(5) Accelerated optical solitons in reorientational media with transverse invariance and longitudinally modulated birefringence Phys. Rev. A 98, 023810 Spatial solitons to mold random lasers in nematic liquid crystals [Invited] Optical Materials Express Vol. 8, Issue 12, pp. 3864-3878 (2018) Interplay of Thermo-Optic and Reorientational Responses in Nematicon Generation Materials, Vol. 11, Iss. 10 (2018) Beaming random lasers with soliton control Nature Communications 9, 3863 (2018) Thermo-optic soliton routing in nematic liquid crystals Optics Letters Vol. 43, Issue 10, pp. 2296-229 2017 Nonlinear continuous-wave optical propagation in nematic liquid crystals: Interplay between reorientational and thermal effects Phys. Rev. E 96, 012703 Nematicon-enhanced spontaneous symmetry breaking Molecular Crystals and Liquid Crystals Vol. 649, Iss. 1 (2017) All-optical guided-wave random laser in nematic liquid crystals Optics Express Vol. 25, Issue 5, pp. 4672-4679 (2017) Magnetic routing of light-induced waveguides Nat. Comm. 8, 14452 (2017) Erratum: \"Soliton-assisted random lasing in optically-pumped liquid crystals Appl. Phys. Lett. 110 (1), 1019902 (2017) Bistable beam propagation in liquid crystals IEEE Journal of Quantum Electronics Volume: 53, Issue: 1, Interplay between diffraction and the Pancharatnam-Berry phase in inhomogeneously twisted anisotropic media Phys. Rev. A 95, 023823 (2017) 2016 Highly nonlocal optical response: Benefit or drawback? Journal of Nonlinear Optical Physics & MaterialsVol. 25, No. 04, 1650043 Anomalous diffraction in hyperbolic materials Phys. Rev. A 94, 033830 Linear and nonlinear light beam propagation in chiral nematic liquid crystal waveguides Photon. Lett. Pol. 8 (1), 1 (2016) Quenching nematicon fluctuations via photostabilization Photon. Lett. Pol. 8 (1), 2-4 (2016) Nonlocal soliton scattering in random potentials Journal of Optics, Volume 18, Number 7 Electromagnetic Confinement via Spin-Orbit Interaction in Anisotropic Dielectrics ACS Photonics, 2016, 3 (12), pp 2249-2254 Phase-front curvature effects on nematicon generation Journal of the Optical Society of America B Vol. 33, Issue 5, pp. 903-909 (2016) Vortex stabilization by means of spatial solitons in nonlocal media Journal of Optics, Volume 18, Number 5 Guiding light via geometric phases Nature Photonics 10, 571-575 (2016) Breather solitons in highly nonlocal media Journal of Optics, Volume 18, Number 12 Quasi two-dimensional astigmatic solitons in soft chiral metastructures Scientific Reports 6, Article number: 22923 doi:10.1038/srep22923 Soliton-assisted random lasing in optically-pumped liquid crystals Appl. Phys. Lett. 109, 161105 (2016) Voltage-driven beam bistability in a reorientational uniaxial dielectric APL Photonics 1, 011302 (2016) Light Induced Waveguides in Nematic Liquid Crystals J. Sel. Top. Quantum Electron. 22 (2), 4400306 (2016) 2015 Nonlinear competition in nematicon propagation Optics Letters Vol. 40, Issue 22, pp. 5235-5238 (2015) Observation of stable vector vortex solitons Opt. Lett. 40 (17), 4182-5 (2015) Nonlinear negative refraction in reorientational soft matter? Phys. Rev. A 92, 033835 (2015) Soliton enhancement of sponaneous symmetry breaking Optica 2 (9), 783-9 (2015) Observation of beam self-induced transition from positive to negative optical refraction in nematic liquid crystals Mol. Cryst. Liq. Cryst. 619 (1), 28-34 (2015) Diffraction-induced instability of coupled dark solitary waves Opt. Lett., Vol. 40, Issue 8, pp. 1771-1774 (2015) Extraction of Schottky Barrier Parameters for Metal-Semiconductor Junctions on High Resistivity Inhomogeneous, Semiconductors Electron Devices, IEEE Transactions on 62 (2), 465-470 Spatial optical solitons in highly nonlocal media Phys. Rev. A 91, 013841 (2015) Rapid assessment of nonlinear optical propagation effects in dielectrics Scientific Reports 5, Article number: 7650 (2015) 2014 Nematic liquid crystals: An excellent playground for nonlocal nonlinear light localization in soft matter J. Nonlinear Optic. Phys. Mat. 23, 1450046 𝒫𝒯-symmetric nonlocal gap solitons in optical lattices J. Nonlinear Optic. Phys. Mat. 23, 1450041 (2014) Nematicons in planar cells subject to the optical Freedericksz threshold Opt. Express 22 (25), 30663-30668 (2014) Power-induced evolution and increased dimensionality of nonlinear modes in reorientational soft matter Opt. Lett. 39 (22), 6399-6402 (2014) Power-controlled transition from standard to negative refraction in reorientational soft matter Nat. Commun. 5:5533 doi: 10.1038/ ncomms6533 (2014) Beam hysteresis via reorientational self-focusing Opt. Lett. 39, 5830-5833 (2014) Accessible solitons in diffusive media Opt. Lett. 39 (15), 4317-4320 (2014) Bistability with Optical Beams Propagating in a Reorientational Medium Phys. Rev. Lett. 113, 023901 (2014) Design and simulation of optically controlled field effect transistors Phys. Status Solidi C 11, 81-84 (2014) Spin-On-Dopant Phosphorus diffusion in Germanium thin films for Near-Infrared detectors Phys. Status Solidi C 11, 57-60 (2014) TCAD simulation of thermally evaporated Germanium Phys. Status Solidi C 11, 69-72 (2014) Nonlocal Gap Solitons in PT symmetric periodic potential with defocusing nonlinearity Phys. Rev. A 89, 013812 (2014) Deflection of Nematicon-Vortex Vector Solitons in Liquid Crystals Phys. Rev. A 89, 013827 (2014) Vortex confinement and bending with the aid of nonlocal solitons Opt. Lett. 39 (3), 509-512 (2014) 2013 Nematicons and their electro-optic control: light localization and signal readdressing via reorientation in liquid crystals Int. J. Mol. Sci. 14 (10), 19932-19950 (2013) Harnessing optical vortices in soft matter lattices Phys. Rev. Lett. 111, 093902 (2013) Light confinement via periodic modulation of the refractive index New J. Phys. 15, 083013 (2013) Deflection and trapping of spatial solitons in linear photonic potentials Opt. Express 21 (16), 18646-18660 (2013) Soliton self-routing in a finite photonic potential Opt. Lett. 38 (12), 2071-2073 (2013) Comment on "Solitons in highly nonlocal nematic liquid crystals: Variational approach" Phys. Rev. A 87 (4), 047801 (2013) Optical road-ice detector operating in the near infrared Electron. Lett. 49 (5), 338-340 (2013) A near-infrared optoelectronic approach to detection of road conditions Optics and Lasers in Engineering 51 (5), 633-636 (2013) Optical vortices in antiguides Opt. Lett. 38 (10), 1618-1620 (2013) Deflection of nematicons through interaction with dielectric particles J. Opt. Soc. Am. B 30 (6), 1432-1437 (2013) Near-Infrared Photodetectors in Evaporated Ge: Characterization and TCAD Simulations Electron Devices, IEEE Transactions on 60 (6) (2013) Properties of nematicons in low-birefringent nematic liquid crystals Phot. Lett. Pol. 4 (1), 2-4 (2013) Frequency-Controlled Routing of Self-Confined Beams in Nematic Liquid Crystals Mol. Cryst. Liq. Cryst. 572 (1), 26-33 (2013) Modeling nematicon propagation Mol. Cryst. Liq. Cryst. 572 (1), 2-12 (2013) Optical Vortex Generation in Nematic Liquid Crystal Light Valves Mol. Cryst. Liq. Cryst. 572 (1), 24-30 (2013) Interactions of accessible solitons with interfaces in anisotropic media: the case of uniaxial nematic liquid crystals New J. Phys. 15, 043011 (2013) Light Self-Localization and Power-Dependent Steering in Anisotropic Dielectrics: Spatial Solitons in Uniaxial Nematic Liquid Crystals Progress in Optical Science and Photonics, Ed. B. Malomed, Springer (Berlin), (2013) Germanium-on-Glass solar cells: fabrication and characterization Opt. Mater. Express 3 (2), 216-228 (2013) Characterization of the vortex-pair interaction law and nonlinear mobility effects New J. Phys. 15 (1), 013028 (2013) 2012 Power-Dependent Nematicon Self-Routing Nematicons, Ed. G. Assanto, Wiley, ISBN: 978-0-470-90724-5 (2012) Discrete Light Propagation in Arrays of Liquid Crystalline Waveguides Nematicons, Ed. G. Assanto, Wiley, ISBN: 978-0-470-90724-5 (2012) Nematicons in Light Valves Nematicons, Ed. G. Assanto, Wiley, ISBN: 978-0-470-90724-5 (2012) External Control of Nematicon Paths Nematicons, Ed. G. Assanto, Wiley, ISBN: 978-0-470-90724-5 (2012) Nematicons: Spatial Optical Solitons in Nematic Liquid Crystals Nematicons, Ed. G. Assanto, Wiley, ISBN: 978-0-470-90724-5 (2012) Refraction of Nonlinear Light Beams in Nematic Liquid Crystals J. Nonl. Opt. Phys. Mat. 21 (3), 1250033 (1-21) (2012) All-optical switching of a signal by a pair of interacting nematicons Opt. Express 20 (22), 24701 (2012) Vortex induction via anisotropy self-stabilized light-matter interaction Phys. Rev. Lett. 109 (14), 143901 (2012) High responsivity near-infrared photodetectors in evaporated Ge-on-Si Appl. Phys. Lett. 101, 081101 (2012) Frequency-controlled acceleration of spatial solitons in nematic liquid crystals Appl. Phys. Lett. 101, 081112 (2012) Nematicon waveguides: self-confined beams and their electric control Appl. Phys. B 108, 177-182 (2012) Nematicons Phys. Rep. 516, 147-208 (2012) Self-guided beams in low-birefringence nematic liquid crystals Phys. Rev. A 86, 013824 (2012) In-plane steering of nematicon waveguides across an electrically tuned interface Appl. Phys. Lett. 100, 251107 (2012) Nematicons in azobenzene liquid crystals Mol. Cryst. Liq. Cryst. 559 (1), 202-213 (2012) Dark Spatial Solitons in Liquid Crystals Mol. Cryst. Liq. Cryst. 558, 168-175 (2012) Electro-optic beam steering with nematicons Mol. Cryst. Liq. Cryst. 558, 12-21 (2012) Tunable nonlinearity in nematicon physics Mol. Cryst. Liq. Cryst. 558, 2-11 (2012) Parametric conversion in micrometer and sub-micrometer structured ferroelectric crystals by surface poling. International Journal of Optics, Article ID 606892, (2012) Electro-optic steering of nematicons Phot. Lett. Pol. 4 (1), 2-4 (2012) Scattering of reorientational optical solitons at dielectric perturbation Phys. Rev. A 85 (1), 013804 (2012) 2011 Document Solar cells by Germanium layer transfer on glass 2011 10th International Conference on Environment and Electrical Engineering, EEEIC.EU 2011 - Conference Proceedings 5874708 An electro-optically tunable Bragg reflector based on liquid crystals Mol. Cryst. Liq. Cryst. 549 (1), 62-8 (2011) Reorientational versus Kerr dark and grey solitons using modulation theory Phys. Rev. E 84, 066602 (2011) Features of randomized electric-field assisted domain inversion in Lithium Tantalate Opt. Express 19 (25), 25780-5 (2011) Nematicon self-steering Mol. Cryst. Liq. Cryst. 549, 1-9 (2011) Transverse self-accelaration of nematicons: can a self-confined beam change its own path? J. Nonl. Opt. Phys. Mat. 20, 237-247 (2011) Dipole azimuthons and charge-flipping in nematic liquid crystals Opt. Express 19 (22), 21457-66 (2011) Light bullets in the spatiotemporal nonlinear Schrödinger equation with a variable negative diffraction coefficient Phys. Rev. A 84, 043801 (2011) Trends and trade-offs in nematicon propagation Appl. Phys. B 104 (4), 805-11 (2011) Modulation Analysis of Nonlinear Beam Refraction at an Interface in Liquid Crystals Phys. Rev. A 84, 033818 (2011) Thermally evaporated single-crystal Germanium on Silicon Thin Solid Films 519, 8037-8040 (2011) Low-temperature germanium thin films on silicon Opt. Mater. Express 1 (5), 856-865 (2011) Large electro-optic beam steering with Nematicons Opt. Lett. 36 (14), 2611–3 (2011) Nematicon-nematicon interactions in a medium with tunable nonlinearity and fixed nonlocality Opt. Lett. 36 (13), 2566-8 (2011) Efficient pulse compression and frequency conversion of phase-modulated laser pulses in engineered quasi-phase-matched gratings Phys. Wave Phenom. 19 (2), 107-11 (2011) Lagrange Solution for Three Wavelength Soliton Clusters in Nematic Liquid Crystals Physica D 240, 1213-1219 (2011) Optical Solitons and Wave-Particle Duality Opt. Lett. 36 (10), 1848-50 (2011) Three-dimensional spatiotemporal vector solitary waves J. Phys. B: At. Mol. Opt. Phys. 44, 095403 (2011) Dark Nematicons Opt. Lett. 36 (8), 1456-8 (2011) Non Paraxial Solitary waves in anisotropic dielectrics Phys. Rev. A 83, 033822 (2011) Optical power monitors in Ge monolithically integrated on SOI chips Microelectronic Engineering 88, 514–517 (2011) Thermal evaporation of Ge on Si for near infrared detectors: material and device characterization Microelectronic Engineering 88, 526–529 (2011) Micro-Raman characterization of Germanium thin films evaporated on various substrates Microelectronic Engineering 88, 492–495 (2011) On Beam Propagation in Anisotropic Media: one-dimensional analysis Opt. Lett. 36 (3), 334-6 (2011) Non-paraxial (1+1)D spatial solitons in uniaxial media Opt. Lett. 36 (2), 193-5 (2011) Localized States in Physics: Solitons and Patterns, 1st Edition Springer (Berlin) ISBN: 978-3-642-16548-1 (2011) Multimode nematicon waveguides Opt. Lett. 36 (2), 184-6 (2011) 2010 Integrated frequency shifter in a periodically poled lithium tantalate waveguide Electron. Lett. 46 (25), 1686-7 (2010) Power-dependent nematicon steering via walk-off J. Opt. Soc. Am. B 27 (11), 2398-404 (2010) Power-dependent nematicon steering via walk-off J. Opt. Soc. Am. B 27, 2398-2404 (2010) Soft proton exchanged channel waveguides in congruent lithium tantalate for frequency doubling Opt. Express 25, 25967-72 (2010) Refraction of Nonlinear Beams by Localised Refractive Index Changes in Nematic Liquid Crystals Phys. Rev. A 82, 053843 (2010) Parametric self-trapping in the presence of random quasi-phase-matching Opt. Lett. 35 (22), 3760 (2010) Enhancement of third harmonic generation in nonlocal spatial solitons Opt. Lett. 35 (20), 3342 (2010) Nematicons in Liquid Crystal Light Valves Mol. Cryst. Liq. Cryst. 527, 98-108 (2010) Germanium on Glass: A novel platform for light sensing devices IEEE Photon. J. 2 (5), 686-95 (2010) Propagation of spatial optical solitons in a dielectric with adjustable nonlinearity Phys. Rev. A 82, 023806 (2010) Sub-milliwatt dissipative nematicons and spontaneous light emission in dye-doped nematic liquid crystals Electron. Lett. 46, 790 (2010) Nematicons beyond the perturbative regime Opt. Lett. 35 (15), 2520-2 (2010) Solitary wave propagation and steering through light-induced refractive potentials Phys. Rev. A 81, 063811 (2010) Self-turning self-confined light beams in guest-host media Phys. Rev. Lett. 104, 213904 (2010) Space-Time Bullet Trains via modulation instability and nonlocal solitons Opt. Express 18 (6), 593441 (2010) Continuous-Wave Backward Frequency Doubling in Periodically Poled Lithium Niobate Appl. Phys. Lett. 96, 111110 (2010) Soliton steering by longitudinal modulation of the nonlinearity in waveguide arrays Phys. Rev. Lett. 104 (5), 053903 (2010) Nonlinear disorder mapping through three wave mixing IEEE Photon. J. 2 (1), 18-28 (2010) Readdressable interconnects with spatial soliton waveguides in liquid crystal light valves IEEE Photon. Technol. Lett. 22, 694 (2010) Near-Infrared Ge-on-Si power monitors monolithically integrated on SOI chips IEEE Photon. Technol. Lett. 22, 658 (2010) Soliton gating and switching in liquid crystal light valve Appl. Phys. Lett. 96, 071104 (2010) Germanium on insulator near-infrared photodetectors faricated by layer transfer Thin Solid Films 518, 2501 (2010) Soliton self-deflection via power-dependent walk-off Appl. Phys. Lett. 96, 061105 (2010) Counterpropagating nematicons in bias-free liquid crystals Opt. Express 18 (4), 3258-3263 (2010) Nematicon All-optical control in liquid crystal light valves Opt. Lett 35 (3), 390-2 (2010) Soliton steering by longitudinal modulation of the nonlinearity in waveguide arrays Phys. Rev. Lett. 104 (5), 053903 (2010) Nonlinear disorder mapping through three-wave mixing IEEE Photonics Journal 2, 18-28 (2010) Random quasi-phase-matched second-harmonic eneration in periodicaly poled lithium tantalate Opt. Lett. 35, 363-365 (2010) 2009 Optical path control of solitary waves in dye-doped nematic liquid crystals Photon. Lett. Pol. 1 (4), 154-156 (2009) Liquid Crystal Light Valves: a versatile platform for Nematicons Photon. Lett. Pol. 1 (4), 151-153 (2009) Germanium-on-glass near-infrared detectors Electron. Lett. 45, 994 (2009) Interaction of self-trapped beams in high index glass Opt. Express 17, 17150 (2009) Quadratic Solitons in Non Collinear Quasi-Phase Matched Geometry Phys. Rev. A 80, 021801 (2009) Guided-wave photodetectors in Germanium on optical chips in Silicon-On-Insulator J. Europ. Opt. Soc. Rap. Public. 4, 09030 (2009) Accessible ligth bullets via Synergetic Nonlinearities Phys. Rev. Lett. 102, 203903 (2009) Guided-wave photodetectors in germanium on SOI optical chips Physica E 41, 1090-1093 (2009) Analysis of temperature dependence of Ge-on-Si p-i-n photodetectors Physica E 41, 1086-1089 (2009) Modulation analysis of boundary-induced motion of optical solitary waves in a nematic liquid crystal Phys. Rev. A 79, 043816 (2009) Nematicons in twisted liquid crystals Photon. Lett. Pol. 1 (1), 7-9 (2009) Nematicons escaping a wide trapping potential: modulation theory Phys. Rev. A 79, 033837 (2009) Voltage-driven in-plane steering of nematicons Appl. Phys. Lett. 94, 091106 (2009) Engineered quasi-phase matching for multiple parametric generation and pulse shaping Opt. Express 17 (5), 6765-6770 (2009) Spatial solitons in liquid crystal light valves Opt. Lett. 34 (6), 737-739 (2009) Collisionless shock resolution in nematic liquid crystals Phys. Rev. A 78 (6), 063808 (2009) 2008 Incoherent interaction of nematicons in biasfree liquid crystal cells J. Eur. Opt. Soc. 5, 10008--1-5 (2008) All-optical steering of soliton waveguides in dye doped liquid crystals Appl. Phys. Lett. 93, 171104 (2008) Escaping Solitons from a trapping potential Phys. Rev. Lett. 101, 153902 (2008) Ultra-Violet Generation in Periodically Poled Lithium Tantalate Waveguides Appl. Phys. Lett. 93, 121117 (2008) Near-infrared absorption of Germanium thin films on Silicon Appl. Phys. Lett. 93, 111115 (2008) Near-Infrared p-i-n Ge-on-Si Photodiodes for Silicon Integrated Receivers J. Lightwave Techn. 26, 2954-2959 (2008) Temperature-Dependence of Ge on Si p–i–n Photodetectors J. Lightwave Techn. 26, 2211-2214 (2008) Discrete Solitons in Optics Phys. Rep. 463 (1-3), 1 (2008) In-situ tuning of a photonic band-gap with laser pulses Appl. Phys. Lett. 93, 091111 (2008) Guiding and Bending Light at Will with Spatial Solitons in Liquid Crystals Int. J. Microw. Opt. Techn. 3 (3), 370-6 (2008) Ge-on-Si photodetectors for optical receivers Int. J. Microw. Opt. Techn. 3 (3), 404-11 (2008) All-optical isolation by directional coupling Opt. Lett. 33, 1641-1643 (2008) Spatial solitons in two-dimensional lattices of a nonlinear nature Opt. Photon. News 6, 29-32 (2008) Transverse nonlinear optics in Heavy Metal Oxide Glass Phys. Rev. A 77, 043808 (2008) Parametric solitons in two-dimensional lattices of purely nonlinear origin Phys. Rev. Lett. 100, 053901 (2008) Pulse shaping via Backward Second Harmonic Generation Opt. Express 16, 2115-2121 (2008) Efficient high-harmonic generation in engineered quasi-phase matching gratings Opt. Express 16, 18370-18375 (2008) 2007 Low Dark-Current Germanium-On-Silicon Near-Infrared Detectors IEEE Photon. Technol. Lett. 19, 1813 (2007) Light induced angular steering via Floquet-Bloch band-tunneling in one-dimensional liquid crystalline photonic lattices Opto-Electronics Rev. 15, 210-214 (2007) Spatial solitons in Chi2 planar photonic crystals Opt. Lett. 32, 3149-3151 (2007) Compensating group-velocity mismatch in parametric frequency generation Opt. Lett. 32, 2921-2923 (2007) Dissipative self-confined optical beams in doped nematic liquid crystals J. Nonl. Opt. Phys. & Mat. 16, 295-305 (2007) Universal character of the discrete nonlinear Schrödinger equation Phys. Rev. A 76, 042108 (2007) Nonlinear bouncing of nonlocal spatial solitons at the boundaries Opt. Lett. 32, 2795-2797 (2007) Tunable wavelength-selective add-drop in Liquid Crystals on Silicon microresonator Opt. Commun. 279, 210-213 (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) Near-infrared spatial solitons in heavy metal oxide glasses Opt. Lett. 32, 2103-2105 (2007) Germanium near infrared detector on Silicon-on-Insulator Appl. Phys. Lett. 91, 021107 (2007) Nonlinear management of the angular momentum of soliton clusters: Theory and experiment Phys. Rev. A 75, 063835 (2007) Symmetry breaking instabilities in perturbed optical lattices: nonlinear non-reciprocity and "macroscopic" self-trapping Phys. Rev. A 75, 063828 (2007) Guided-wave frequency doubling in surface periodically poled lithium niobate: competing effects J. Opt. Soc. Am. B 24, 1564-1570 (2007) Femtosecond pulse synthesis by efficient second-harmonic generation in engineered quasi phase matching gratings Opt. Express 15, 7448-7457 (2007) Nematicons across interfaces: anomalous refraction and reflection of solitons in liquid crystals Opt. Express 15, 8021-8028 (2007) Routing light at will J. Nonl. Opt. Phys. & Mat. 16, 37-48 (2007) Ultraviolet Quasi-Phase-Matched Second Harmonic Generation in Surface Periodically Poled Lithium Niobate Optical Waveguides Laser Phys. 17, 884-888 (2007) Nonlinearly controlled angular momentum of soliton clusters Opt. Lett. 32, 1447-1449 (2007) Spatial solitons in nematic liquid crystals: from bulk to discrete Opt. Express 15, 5248-5259 (2007) Thin film Germanium on CMOS Silicon electronics for near infrared imaging Europhoton. 3, 28-30 (2007) Discrete optics in liquid crystalline lattices LEOS Newslett. 2, 11-16 (2007) A near infrared digital camera in polycrystalline Germanium integrated on Silicon IEEE J. Quantum Electron. 43, 311-315 (2007) Nonspecular total internal reflection of spatial solitons at the interface between highly birefringent media Phys. Rev. Lett. 98, 113902 (2007) Nonlinear adiabatic evolution and emission of coherent Bloch waves in optical lattices Phys. Rev. A 75, 13626 (2007) Nonlinear shift of spatial solitons at a graded dielectric interface Opt. Lett. 32, 271-273 (2007) Near-infrared camera in polycrystalline germanium integrated on complementary-metal-oxide semiconductor electronics Appl. Phys. Lett. 90, 011103 (2007) 2006 Tunable refraction and reflection of self-confined light beams Nature Phys. 2, 737-742 (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) Si-based near infrared photodetectors operating at 10 Gbit/s J. Lumin. 121, 413-416 (2006) Dispersion spectroscopy of photonic lattices Opt. Lett. 31, 3351-3353 (2006) Quadratic phase matching in slot waveguides Opt. Lett. 31, 3146-3148 (2006) Two-color vector solitons in nonlocal media Phys. Rev. Lett. 97, 153903 (2006) Lithium niobate step-index waveguides for broadband second harmonic generation J. Nonl. Opt. Phys. 15, 191-202 (2006) Color-center waveguides in low-energy electron-bombarded lithium fluoride Appl. Phys. Lett. 88, 261111 (2006) Impedance matching in photonic crystal microcavities for second-harmonic generation Opt. Lett. 31, 250-252 (2006) Governing soliton splitting in one-dimensional lattices Phys. Rev. E 73, 046603 (2006) Optically induced Zener tunneling in one-dimensional lattices Opt. Lett. 31, 790-792 (2006) Ge on Si p-i-n photodiodes operating at 10Gbit/s Appl. Phys. Lett. 88, 101111 (2006) Nematicons and their angular steering J. Nonl. Opt. Phys. Mat. 15, 33-42 (2006) Light propagation through a nonlinear defect: symmetry breaking and controlled soliton emission Opt. Lett. 31, 1489-1491 (2006) All-optical Landau-Zener tunneling in waveguide arrays Opt. Express 14, 2021-2026 (2006) Surface periodic poling in congruent lithium tantalate Electron. Lett. 42, 546-547 (2006) Spatial Soliton All-Optical Logic Gates IEEE Photon. Techn. Lett. 18 , 1287-1289 (2006) Waveguide photodetectors for the near infrared in polycristalline germanium on silicon IEEE Photon. Techn. 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