Search Results - "Di Falco, A."

Perfect secrecy cryptography via mixing of chaotic waves in irreversible time-varying silicon chips by Di Falco, A., Mazzone, V., Cruz, A., Fratalocchi, A.

“…Protecting confidential data is a major worldwide challenge. Classical cryptography is fast and scalable, but is broken by quantum algorithms. Quantum…”
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Bidirectional Optical Sorting of Gold Nanoparticles by Ploschner, M, Čižmár, T, Mazilu, M, Di Falco, A, Dholakia, K

“…We present a generic technique allowing size-based all-optical sorting of gold nanoparticles. Optical forces acting on metallic nanoparticles are substantially…”
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Optically induced metal-to-dielectric transition in Epsilon-Near-Zero metamaterials by Kaipurath, R. M., Pietrzyk, M., Caspani, L., Roger, T., Clerici, M., Rizza, C., Ciattoni, A., Di Falco, A., Faccio, D.

“…Epsilon-Near-Zero materials exhibit a transition in the real part of the dielectric permittivity from positive to negative value as a function of wavelength…”
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Enhanced Nonlinear Refractive Index in ε-Near-Zero Materials by Caspani, L, Kaipurath, R P M, Clerici, M, Ferrera, M, Roger, T, Kim, J, Kinsey, N, Pietrzyk, M, Di Falco, A, Shalaev, V M, Boltasseva, A, Faccio, D

“…New propagation regimes for light arise from the ability to tune the dielectric permittivity to extremely low values. Here, we demonstrate a universal approach…”
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High Efficiency Interface for Coupling Into Slotted Photonic Crystal Waveguides by Scullion, M G, Krauss, T F, Di Falco, A

“…We investigate the mechanism of coupling light into slotted photonic crystal waveguides. We identify two alternative approaches for improving the coupling…”
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Chemical sensing in slotted photonic crystal heterostructure cavities by Di Falco, A., O'Faolain, L., Krauss, T. F.

“…We fabricated slotted photonic crystal waveguides and cavities supporting resonant modes in air. Their peculiar geometry enables the detection of refractive…”
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Spatial Distribution of Phase Singularities in Optical Random Vector Waves by De Angelis, L, Alpeggiani, F, Di Falco, A, Kuipers, L

“…Phase singularities are dislocations widely studied in optical fields as well as in other areas of physics. With experiment and theory we show that the…”
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Persistence and Lifelong Fidelity of Phase Singularities in Optical Random Waves by De Angelis, L, Alpeggiani, F, Di Falco, A, Kuipers, L

“…Phase singularities are locations where light is twisted like a corkscrew, with positive or negative topological charge depending on the twisting direction…”
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Triggering extreme events at the nanoscale in photonic seas by Liu, C., van der Wel, R. E. C., Rotenberg, N., Kuipers, L., Krauss, T. F., Di Falco, A., Fratalocchi, A.

“…Hurricanes, tsunamis, rogue waves and tornadoes are rare natural phenomena that embed an exceptionally large amount of energy, which appears and quickly…”
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Laser writing of parabolic micromirrors with a high numerical aperture for optical trapping and rotation by Plaskocinski, T., Arita, Y., Bruce, G. D., Persheyev, S., Dholakia, K., Di Falco, A., Ohadi, H.

“…On-chip optical trapping systems allow for high scalability and lower the barrier to access. Systems capable of trapping multiple particles typically come with…”
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Flexible patches for mm-wave holography by Burch, J., Ma, J., Hunter, R. I., Schulz, S. A., Robertson, D. A., Smith, G. M., Wang, J., Di Falco, A.

“…In this work, we demonstrate, in simulation and experiment, reflection metasurface holograms operating in the millimeter wavelength range. Flexible holographic…”
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Enhanced energy storage in chaotic optical resonators by Liu, C., Di Falco, A., Molinari, D., Khan, Y., Ooi, B. S., Krauss, T. F., Fratalocchi, A.

“…Chaos is a phenomenon that occurs in many aspects of contemporary science. In classical dynamics, chaos is defined as a hypersensitivity to initial conditions…”
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Dispersion control and slow light in slotted photonic crystal waveguides by Di Falco, A., O'Faolain, L., Krauss, T. F.

“…Slotted photonic crystal waveguides combine the ability to confine light in air with the dispersion control available from photonic crystals. Here, we study…”
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Dicke Phase Transition with Multiple Superradiant States in Quantum Chaotic Resonators by Liu, C., Di Falco, A., Fratalocchi, A.

“…We experimentally investigate the Dicke phase transition in chaotic optical resonators realized with two-dimensional photonics crystals. This setup circumvents…”
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Holographic Optical Metasurfaces with High Trap Stiffness by Plaskocinski, T., Xiao, J., Biabanifard, M., Persheyev, S., Falco, A. Di

“…Photonic metasurfaces have been proposed to create on-chip solutions for optical trapping applications. We present a metasurface-enabled on-chip system capable…”
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Optical shock waves in silica aerogel by Gentilini, S, Ghajeri, F, Ghofraniha, N, Di Falco, A, Conti, C

“…Silica aerogels are materials well suited for high power nonlinear optical applications. In such regime, the non-trivial thermal properties may give rise to…”
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Spatial optical solitons in nonlinearly coupled lithium niobate waveguides by Di Falco, A., Assanto, G.

“…We numerically investigate a novel type of quadratic spatial solitons in the system of surface and buried planar waveguides obtained via direct- and…”
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Parametric oscillations in photonic crystal slabs 3-D time-domain analysis by Conti, C., Di Falco, A., Assanto, G.

“…Slab waveguides with a two-dimensional periodic distribution of the refractive index are proposed and investigated as optical microcavities for efficient…”
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Slotted photonic crystal cavities with integrated microfluidics for biosensing applications by Scullion, M.G., Di Falco, A., Krauss, T.F.

“…We demonstrate the detection of dissolved avidin concentrations as low as 15 nM or 1 μg/ml using functionalized slotted photonic crystal cavities with…”
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Propagation Losses of Slotted Photonic Crystal Waveguides by Di Falco, A., Massari, M., Scullion, M. G., Schulz, S. A., Romanato, F., Krauss, T. F.

“…We have fabricated and characterized a set of slotted photonic crystal (SPhC) waveguides in silicon-on-insulator (SOI) with a length of up to 300 \mu\hbox{m}…”
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