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The general relativity effect of frame-dragging: the precession of test particles in the spacetime surrounding spinning masses, is demonstrated by solitons rotating the space around them via nonlocal nonlinearities, transferring angular momentum to probe beams.
We introduce non-diffracting accelerating beams propagating on spherical surfaces. We find close form-solutions to the wave equation, and demonstrate their non-geodesic propagation dynamics in experiments.
We present topological photonics in curved space. We use 1D waveguide lattices on curved surfaces, and show that the curvature of the surface induces topological phase transfer dynamics, Thouless pumping, localization and delocalization of waves.
We present the first study on the interplay between lattice wave dynamics and curved space. We demonstrate Bloch oscillations and dynamic localization induced by space curvature, for configurations which in flat-space show only discrete diffraction.
We present nanophotonic structures in three dimensions inspired by General Relativity concepts, enabling control over the light dynamics: the group and phase velocities together with the spatial modes structure, suggesting implications to enhancing light-matter interaction.
We show that shaping the wavepackets of Dirac particles can alter fundamental relativistic effects such as length contraction and time dilation. For example, shaping decaying particles as self-accelerating Dirac wavepackets extends their lifetime.
We experimentally observe Einstein's Rings caused by gravitational lensing by designing a refractive index profile analogous to the curvature of a star. We employ the experiment to produce collimated optical beams in homogenous media.
We find specific wavepackets that overcome analogue gravitational phenomena due to the complex interplay between interference effects and various optical gravitational effects, and demonstrate them in experiments with nonlocal nonlinear interactions.
We study the dynamics of light in the Schwarzschild metric using a specifically fabricated micro-sized curved waveguide analogous to the black hole and the whormhole metrics, demonstrating complex dynamics and tunneling through the horizon.
We experimentally demonstrate collimation in transformation optics by designing a refractive index profile analogous to the curvature of a star. Our experiments also enable the observation of Einstein's Rings caused by gravitational lensing as predicted in 1936.
A recent experiment confirmed the 35 years old prediction of Airy-shaped electron beams that accelerate in the absence of any potential. Yet their most intriguing property remained unclear: will such electrons emit radiation in free-space?
We introduce loss-proof shape-invariant nonparaxial accelerating beams that overcome both diffraction and absorption, and demonstrate their use in acceleration of microparticles inside liquids along curved trajectories that are significantly steeper than ever achieved.
We present non-paraxial shape-preserving accelerating electromagnetic wavepackets propagating in micro-sized curved surfaces, revealing exotic trajectories and polarization rotation dynamics caused by the interplay of interference effects and the curvature of space.
We develop holographic methods to generate arbitrarily-shaped light intensity distributions inside photonic crystals slabs, through shaping the electromagnetic field launched at the facets of the crystal. The technique can be generalized to any photonic structure.
We demonstrate optical analogues of gravitational effects such as gravitational lensing, tidal forces and gravitational redshift in the Newton-Schrödinger mainframe, by utilizing long-range interactions between solitons and accelerating beams in nonlocal nonlinear media.
We introduce a new class of 1 & 2-dimensional beams that overcome both diffraction & absorption, enabling accelerating plasmons that maintain their intensity profile. In free space these beams exhibit a counterintuitive exponential intensity growth.
We present the first study on linear and nonlinear accelerating beams in curved space. These shape-invariant wavepackets propagate along various trajectories arising from the interplay between the curvature of space and the interference effects.
We find self-accelerating beams in nonlocal nonlinear media and show that their propagation dynamics is affected by boundary conditions that increase their acceleration, or cause bending in a direction opposite to the initial trajectory.
We present the spatially accelerating solutions of the Maxwell equations. Such beams accelerate along a circular trajectory extending beyond the paraxial regime, thus generalizing the concept of accelerating Airy beams.
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