Description: to the propagation of cw radiation and solitons in quadratically nonlinear media.- Plane and guided wave effects and devices via quadratic cascading.- Control of laser light parameters by ?(2): ?(2) nonlinear optical devices.- Asymmetric quantum wells for second-order optical nonlinearities.- Experiments on quadratic spatial solitons.- Diffraction beam interaction in quadratic nonlinear media.- A lithium niobate quadratic device for wavelength multiplexing around 1.55?m.- Full vector theory of fundamental and second-harmonic cw waves.- Nonlinear phase shifts in a counterpropagating quasi-phase-matched configuration.- Generation of high power picosecond pulses by passively mode-locked Nd:YAG laser using frequency doubling mirror.- Collision, fusion, and spiralling of interacting solitons in a bulk quadratic medium.- Quadratic ring-shaped solitary waves.- Solitary and periodic pulses for ?(2): explicit solutions in abundance.- Propagation of ring dark solitary waves in saturable self-defocusing media.- The N-soliton interactions, complex toda chain and stable propagation of NLS soliton trains.- Ray optics theory of self-matched beams mutual focusing in quadratic nonlinear media.- Resonant properties of ?2 in two-particle frequency regions.- On parametric coupled solitons with high-order dispersion.- Large self-phase modulation via simultaneous second harmonic generation and sum frequency mixing.- Pulsed beam self-focusing.- Slow and immobile solitons in quadratic media.- Fermi resonance nonlinear waves and solitons in organic superlattices.- Cascaded processes in gyrotropy media, and novel electro-optical effect on ?(2) nonlinearity.- Classical and quantum aspects of cw parametric interaction in a cavity.- Alternative media for cascading: Second order nonlinearitiesand cascading in plasma waveguids.- Frequency conversion with semiconductor heterostructures.- Parametric interactions in waveguides realized on periodically poled crystals.- Rb:KTP optical waveguides.- Backward parametric interactions in quasi-phase matched configurations.- Modes of TM field in nonlinear Kerr media.- Numerical simulations of self-induced plasma smoothing of spatially incoherent laser beams.- Effects of impurities on existence and propagation of intrinsic localized modes in ferromagnetic spin chains.- Optical properties and holographic recording in Pb2ScTaO6 single crystal.- Nonlinear effects in bulk semiconductor waveguide switches.- Nonlinear transmission of ultrashort light pulses by a thin semiconductor film for the case of two-photon biexciton excitation.- The optical and structural properties of HxLi1-xNbO3 phases, generated in proton exchanged LiNbO3 optical waveguides.- Optical properties of Bi12TiO20 photorefractive crystals doped with Cu and Ag.- Coherent and incoherent optical processes and phase sensitive adiabatic states.- High average power tunable deep UV generation using cascading second-order nonlinear optical conversions.- Optical filters and switches using photonic bandgap structures.- Thin layer modification of P.V.D.F. with copper sulfide.- Quadratic solitons: past, present and future.

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