Immobilization of photorefractive solitons by charge anchoring on conductive walls: publisher's note.

This publisher's note contains a correction to Opt. Lett.48, 6508 (2023)10.

Novel Highly Efficient Buried Gratings for Selective Coupling of SPP Waves onto Single Interfaces.

Diffraction gratings have always been used to effectively couple optical radiation within integrated waveguides. This is also valid for plasmonic structures that support Surface Plasmon Polariton (SPP) waves. Traditional gratings usually excite SPP waves at the interface where they are located or, for thin metal nanostrips, at both interfaces.

Photorefraction Simulates Well the Plasticity of Neural Synaptic Connections.

In recent years, the need for systems capable of achieving the dynamic learning and information storage efficiency of the biological brain has led to the emergence of neuromorphic research. In particular, neuromorphic optics was born with the idea of reproducing the functional and structural properties of the biological brain. In this context, solitonic neuromorphic research has demonstrated the ability to reproduce dynamic and plastic structures capable of learning and storing through conformational changes in the network.

Immobilization of photorefractive solitons by charge anchoring on conductive walls.

Spatial solitons have shown great promise for various applications, but their limited stability in terms of beam movement has been a significant hindrance. This limitation is especially prominent in the conventional configuration where the bias electric field is oriented perpendicular to the soliton propagation direction, leading to instability caused by the drift-diffusion processes. To address this issue, we explore a novel, to the best of our knowledge, approach where solitons are propagated from one bias plate to the other, with a tilted angle with respect to the field and to the optical axis of the photorefractive crystal.

Ultra-broadband interconnection between two SPP nanostrips by a photorefractive soliton waveguide.

We propose a very efficient approach to interconnect together two metallic nanostrips supporting the propagation of surface plasmon polariton (SPP) waves by fabricating a photorefractive soliton guide. By designing a multilayer geometry for plasmon systems, it is possible to control the diffraction of light at the end of the metallic nanostrip, reducing its angular dispersion and directing it towards the second nanostrip. Between the two, a photorefractive crystal allows the self-confinement of light, creating a waveguide that can be used both by the light that wrote it and by other wavelengths sent as signals.