Search Results - "Mei, F. Di"

Super-crystals in composite ferroelectrics by Pierangeli, D., Ferraro, M., Di Mei, F., Di Domenico, G., de Oliveira, C. E. M., Agranat, A. J., DelRe, E.

“…As atoms and molecules condense to form solids, a crystalline state can emerge with its highly ordered geometry and subnanometric lattice constant. In some…”
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Turbulent Transitions in Optical Wave Propagation by Pierangeli, D, Di Mei, F, Di Domenico, G, Agranat, A J, Conti, C, DelRe, E

“…We report the direct observation of the onset of turbulence in propagating one-dimensional optical waves. The transition occurs as the disordered hosting…”
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Photorefractive light needles in glassy nanodisordered KNTN by Pierangeli, D, Parravicini, J, Di Mei, F, Parravicini, G B, Agranat, A J, DelRe, E

“…We study the formation of 2D self-trapped beams in nanodisordered potassium-sodium-tantalate-niobate (KNTN) cooled below the dynamic glass transition…”
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Observation of an intrinsic nonlinearity in the electro-optic response of freezing relaxors ferroelectrics by Pierangeli, D., Di Mei, F., Parravicini, J., Parravicini, GB, Agranat, A. J., Conti, C., DelRe, E.

“…We demonstrate an electro-optic response that is linear in the amplitude but independent of the sign of the applied electric field. The symmetry-preserving…”
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Spatial Rogue Waves in Photorefractive Ferroelectrics by Pierangeli, D, Di Mei, F, Conti, C, Agranat, A J, DelRe, E

“…Rogue waves are observed as light propagates in the extreme nonlinear regime that occurs when a photorefractive ferroelectric crystal is undergoing a…”
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Giant broadband refraction in the visible in a ferroelectric perovskite by Di Mei, F., Falsi, L., Flammini, M., Pierangeli, D., Di Porto, P., Agranat, A. J., DelRe, E.

“…In principle, materials with a broadband giant index of refraction ( n  > 10) overcome chromatic aberration and shrink the diffraction limit down to the…”
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Intrinsic Negative Mass from Nonlinearity by Di Mei, F, Caramazza, P, Pierangeli, D, Di Domenico, G, Ilan, H, Agranat, A J, Di Porto, P, DelRe, E

“…We propose and provide experimental evidence of a mechanism able to support negative intrinsic effective mass. The idea is to use a shape-sensitive…”
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Aging solitons in photorefractive dipolar glasses by Parravicini, J, Pierangeli, D, Di Mei, F, Conti, C, Agranat, A J, DelRe, E

“…We study experimentally the aging of optical spatial solitons in a dipolar glass hosted by a nanodisordered sample of photorefractive…”
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Anti-diffracting beams through the diffusive optical nonlinearity by Di Mei, F, Parravicini, J, Pierangeli, D, Conti, C, Agranat, A J, DelRe, E

“…Anti-diffraction is a theoretically predicted nonlinear optical phenomenon that occurs when a light beam spontaneously focalizes independently of its…”
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Continuous Solitons in a Lattice Nonlinearity by Pierangeli, D, Flammini, M, Di Mei, F, Parravicini, J, de Oliveira, C E M, Agranat, A J, DelRe, E

“…We study theoretically and experimentally the propagation of optical solitons in a lattice nonlinearity, a periodic pattern that both affects and is strongly…”
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Diffraction cancellation over multiple wavelengths in photorefractive dipolar glasses by Parravicini, J, Di Mei, F, Conti, C, Agranat, A J, DelRe, E

“…We report the simultaneous diffraction cancellation for beams of different wavelengths in out-of-equilibrium dipolar glass. The effect is supported by the…”
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Giant Broadband Refraction in the Visible in a Disordered Ferroelectric Perovskite by Falsi, L., di Mei, F., Flammini, M., Ptet-Anaeli, D., di Por'to, P., Agranat, A. J., DelRe, E. E.

“…In this work we report broadband refraction and diffraction experiments in a ferroelectric perovskite, a solid-solution K 0.997 Ta 0.64 Nb 0 .36:Li 0.003…”
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Direct Imaging of Fractal-Dimensional Percolation in the 3D Cluster Dynamics of a Ferroelectric Super-Crystal by Falsi, L., Aversa, M., Mei, F. Di, Pierangeli, D., Xin, F., Agranat, A. J., DelRe, E.

“…We use giant optical refraction (GR) to perform, for the first time, real-time imaging of ferroelectric volume cluster dynamics [1] . Experiments are carried…”
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Constraint-free wavelength conversion supported by giant refraction in a 3D perovskite Super-Crystal by Falsi, L., Tartara, L., Mei, F. Di, Flammini, M., Parravicini, J., Pierangeli, D., Parravicini, G.B., Porto, P. Di, Xin, F., Agranat, A. J., DelRe, E.

“…We demonstrate second-harmonic generation (SHG) in a KTN:Li ferroelectric perovskite that manifests giant refraction (n ⪢ 1) [1] . When light is focused on the…”
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Giant Broadband Refraction in the Visible in a Nanodisordered Ferroelectric Perovskite by Falsi, L., Di Mei, F., Flammini, M., Pierangeli, D., Di Porto, P., Agranat, A. J., DelRe, E.

“…Summary form only given. We report broadband refraction and diffraction experiments in a ferroelectric perovskite, a solid-solution K 0.997 Ta 0.64 Nb 0.36 :Li…”
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Spatial Rogue Waves in Photo refractive Ferroelectrics by Pierangeli, D, Di Mei, F, Conti, C, Agranat, A J, DelRe, E

“…Rogue waves are observed as light propagates in the extreme nonlinear regime that occurs when a photorefractive ferroelectric crystal is undergoing a…”
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Observation of diffraction cancellation for nonparaxial beams in the scale-free-optics regime by Di Mei, F., Pierangeli, D., Parravicini, J., Conti, C., Agranat, A. J., DelRe, E.

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Evidence of the universal dynamics of rogue waves by Pierangeli, D, Di Mei, F, Conti, C, DelRe, E

“…Light manifests extreme localized waves with long-tail statistics that seem analogous to the still little understood rogue waves in oceans, and optical setups…”
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Spin-glass behavior in nonlinear optical waves by Pierangeli, D., Jlammini, M, Tavani, A., Di Mei, F., Agranat, A.J., Zhang, L., Conti, C., DelRe, E.

“…We report the observation of replica symmetry breaking in optical wave propagation, a phenomenon that emerges from the interplay of disorder and nonlinearity…”
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Binary birefringence in ferroelectric super-crystals by Ferraro, M., Pierangeli, D., Flammini, M., Di Mei, F., Di Domenico, G., Agranat, A. J., DelRe, E.

“…Summary form only given. The state of polarization of light is strongly affected by anisotropy and exotic polarization phenomena can be observed in systems…”
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