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We show that shaping the initial wavefunction of a multi-electron system can lead to electron beams displaying shape-preserving propagation in spite of the inherent repulsion among electrons. This idea suggests applications in microscopy and lithography.
We show that a Lieb photonic lattice of helical waveguides (without any external field) has one-way edge states that are topologically protected against backscattering as they pass through defects or around corners.
We propose and experimentally demonstrate a method of exploiting prior knowledge of a signal's sparsity to perform super-resolution in various optical measurements, including: single-shot sub-wavelength Coherent Diffractive Imaging (CDI), i.e. algorithmic object reconstruction from Fourier amplitude measurements, and ultra-fast pulse measurement, i.e. exceeding the temporal resolution imposed by the...
We study, experimentally and theoretically, interactions between a soliton and a transient trapping potential. The soliton can be guided by such a potential, while its motion is arrested at the potential minimum by radiation dampening.
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 demonstrate a novel regime of light-disorder interactions, at which the quantum-classical Correspondence Principle breaks and quantum-behavior appears even at large quantum numbers. Our findings are supported numerically and an experiment-ready scheme is suggested.
We present an analytic spectral wave theory describing the propagation of wavepackets in dynamically-evolving disordered potentials, in the hyper-transport regime. The results are examined in the context of Bohr's correspondence principle.
By introducing concepts of beam shaping from nonlinear optics into quantum mechanics, we show how interference of electrons wavefunctions can exactly balance the nonlinear self-repulsion of an electron-beam, creating nonspreading shape-preserving propagation in free-space.
We find beams that self-bend to highly nonparaxial angles in a general periodic optical system, demonstrating how light can be guided in structures by only tailoring the incoming field, without altering the structure itself.
We present, theoretically and experimentally, non-broadening optical beams having arbitrarily small superoscillatory features. Our design facilitates control over the symmetry, width, and rotational orientation of the superoscillating beams.
We present a scheme for recovering the input signal launched into a waveguide array from partial measurements of its output intensity, given that the input is sparse. Possible applications include optical interconnects, and quantum tomography.
We experimentally and theoretically demonstrate a topological transition in photonic graphene. By applying a uniaxial strain, the system transforms from one that supports states localized on the edge to one that does not.
We present photonic topological insulator-solitons: self-trapped wavepackets that form a self-localized edge states residing in the bulk of a photonic topological insulator (helical waveguide honeycomb lattice), while continuously rotating with a given directionality.
We present electromagnetic three-dimensional spatially accelerating waves whose transverse profiles propagate along semicircular trajectories while approximately preserving their shape. Our results allow the generation of accelerating waves with novel transverse distributions, broadening their application even further.
We investigate the acceleration dynamics of non-paraxial Bessel beams. We show that this acceleration behavior can persist even in the presence of evanescent components. Our study can be useful in plasmonic and other sub-wavelength settings.
We demonstrate experimentally algorithmic super-resolution for diagnostics of short pulses (amplitude and phase). Our approach is based on using the measured data for finding a mathematical basis in which the pulse is represented compactly.
We show that prior information, such as that a quantum state is sparse in a known mathematical basis, enables algorithmic reconstruction of an initial three-photon state from two-photon coincidence measurements, thereby achieving quantum super-resolution.
We propose and demonstrate a proof-of-concept for a novel multiplexing scheme for high-performance optical interconnects. Our approach is based on waveguide coupling using multilevel detection to increase the system throughput without increasing aggregate bit rate.
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 demonstrate experimentally sparsity-based super-resolution of coherent diffraction imaging (CDI) with extreme UV radiation. We also present the first experimental CDI of a practically one-dimensional object, overcoming the well-known ambiguity problem in one-dimensional phase retrieval.
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