We present the nondiffracting spatially accelerating solutions of Maxwell equations. Such beams accelerate in a circular trajectory, thus generalizing concept Airy to full domain wave equation. For both TE and TM polarizations, exhibit shape-preserving bending which can have subwavelength features, Poynting vector main lobe displays turn more than 90°. show that these are self-healing, analyze their properties, find new class breathers: self-bending periodically oscillating shapes. Finally,...

We show that the well-known \v{C}erenkov Effect contains new phenomena arising from quantum nature of charged particles. The transition amplitudes allow coupling between particle and emitted photon through their orbital angular momentum (OAM) spin, by scattering into preferred angles polarizations. Importantly, spectral response reveals a discontinuity immediately below frequency cutoff can occur in optical region. Specifically, with proper shaping electron beams (ebeams), we predict...

The interactions of free electrons with optical cavities enable the creation novel quantum photonic states.

We present, theoretically and experimentally, diffractionless optical beams displaying arbitrarily-shaped sub-diffraction-limited features known as superoscillations. devise an analytic method to generate such experimentally demonstrate superoscillations propagating without changing their intensity distribution for distances large 250 Rayleigh lengths. Finally, we find the general conditions on fraction of power that can be carried by these function spatial extent Fourier decomposition....

We discover long-lived (microsecond-scale) optical waveguiding in the wake of atmospheric laser filaments. also observe formation and then outward propagation consequent sound wave. These effects may be used for remote induction structures from afar which could serve a variety applications.

Wave packets of light have been made to travel in a curved space along geodesic paths, generating optical analogues general-relativity phenomena. A new analysis the curved-space generalization Maxwell equations shows that wave can also nongeodesic paths while changing and recovering their shapes periodically.

As quantum processors grow in scale and reliability, the need for efficient gate decomposition of circuits to a set specific available gates, becomes ever more critical. The particular algorithm into sequence these gates is not unique. Thus, fidelity an algorithm's implementation can be increased by choosing optimized decomposition. This true both noisy intermediate-scale platforms as well error correction schemes. Here we present compilation scheme which implements general-circuit...

We find accelerating beams in a general periodic optical system, such as photonic crystal slabs, honeycomb lattices, and various metamaterials. These retain shape-preserving profile while bending to highly non-paraxial angles along circular-like trajectory. The properties of depend on the lattice structure: small-scale, fine features are uniquely derived from exact structure crystalline cells, large-scale beam only depends periodicity lattice, asymptotically reaching free-space analytic...

We show that light guided in a planar dielectric slab geometry incorporating biaxial medium has lossless modes with group and phase velocities opposite directions. Particles vacuum gap inserted into the structure experience negative radiation pressure: particles are pulled by rather than pushed it. This effectively one-dimensional represents new for achieving pressure wide range of frequencies minimal loss. Moreover, this provides straightforward platform experimentally resolving...

Atomic interferometers measure forces and acceleration with exceptional precision. The conventional approach to atomic interferometry is launch an cloud into a ballistic trajectory perform the wave-packet splitting in momentum space by Raman transitions. This places severe constraints on possible trajectory, positioning accuracy, probing duration. Here, we propose analyze alternative interferometer that uses micro-optical traps (optical tweezers) manipulate control motion of atoms. allows...

Optical manipulation of particulate-loaded, highly scattering (opaque) suspensions is considered impossible. Here we demonstrate theoretically and experimentally optical the local properties such opaque suspensions. We show that forces exerted by multiply-scattered light give rise to dense shock fronts particle concentration, propagating deep inside suspensions, where field completely diffuse. exploit these waves a plethora optofluidic manipulations, ranging from transport concentration...

We present shape-preserving self-accelerating beams of Maxwell's equations with optical nonlinearities. Such are exact solutions to Kerr or saturable nonlinearity. The nonlinearity contributes self-trapping and causes backscattering. Those effects, together diffraction work maintain acceleration the beam on a circular trajectory. backscattered is found be key issue in dynamics such highly non-paraxial nonlinear beams. To study that, we develop two new techniques: projection operator...

Coherent manipulation of matter waves, a distinctive hallmark quantum mechanics, is fundamental to modern technologies. Spatial adiabatic passage (SAP) prime example this phenomenon, where wave packet transferred between two uncoupled localized modes by adjusting the tunneling coupling an intermediate third mode in counterintuitive sequence. Although concept was introduced over decades ago, its observation previously limited electromagnetic waves. In study, we demonstrate interference effect...

We present a new optimization concept for 3D multiphoton fluorescence microscopy by finding the optimal excitation beam giving rise to smallest possible light-emitting volume or highest signal noise ratio (SNR).

In this paper, we present the observation of light-induced self-synchronizing flow patterns in a light–fluid system. A light beam induces local fluid, which oscillate periodically or chaotically time. The oscillations within different regions fluid interact with each other through heat- and surface-tension-induced waves, they become synchronized. We demonstrate optical control over state synchronization temporal correlation between parts field. Finally, provide model to elucidate these...

Get PDF Email Share with Facebook Tweet This Post on reddit LinkedIn Add to CiteULike Mendeley BibSonomy Citation Copy Text Ido Kaminer, Elad Greenfield, Rivka Bekenstein, Jonathan Nemirovsky, Mordechai Segev, Amaury Mathis, Luc Froehly, François Courvoisier, and John M. Dudley, "Accelerating Beyond the Horizon," Optics & Photonics News 23(12), 26-26 (2012) Export BibTex Endnote (RIS) HTML Plain alert Save article

Spatial adiabatic passage (SAP) is a process that facilitates the transfer of wave packet between two localized modes are not directly coupled, but rather interact through an intermediate third mode. By employing counter-intuitive pulse sequence, this technique achieves minimal population in state and high efficiency. Here, we report implementation SAP for transferring massive particles three micro-optical traps. We begin by preparing ultracold fermionic atoms low vibrational eigenstates one...

A novel uncooled thermal sensor based on a suspended transistor, fabricated in standard CMOS-SOI process, and released by dry etching, dubbed Digital TMOS, has been developed. Using the transistor as sensing element advantages terms of internal gain, low power, low-cost technology, high temperature sensitivity. two channel radiometer, new nano-metric CMOS-SOI-NEMS Technology, enables remote well emissivity forehead body temperatures people, with accuracy resolution. Body is an indicator...

An array of ultracold neutral atoms held in optical micro-traps is a promising platform for quantum computation. One the major bottlenecks this weak coupling strength between adjacent atoms, which limits speed two-qubit gates. Here, we present method to perform fast universal square-root-SWAP gate with fermionic atoms. The basic idea release into harmonic potential positioned two By properly tailoring interaction parameter, collision process generates entanglement and yields desired gate. We...

Abstract Quantum entanglement and relativistic causality are key concepts in theoretical works seeking to unify quantum mechanics gravity. In this article, a gedanken experiment that couples the spin spacetime is proposed, then analyzed context of information by using different approaches Both classical gravity theory certain theories predict around spin‐half particle, spherical symmetry broken its magnetic field or merely intrinsic angular momentum. It asserted any spin‐related deviation...

A method is presented for estimating unknown Fourier domain (k-space) data using a small number of samples in that space. The derived from Bochners Theorem, and termed: Bochner Inequality Completion K-Space (BICKS). It suitable filling the k-space real nonnegative quantity, applicable even when sampling rate substantially lower than Nyquist rate. BICKS demonstrated context medical imaging, but it also to many other scientific areas utilize signal processing domain. results indicate highly...

The flute instability in mirror machines is driven by spatial charge accumulation and the resulting E × B plasma drift. On other hand, drift due to external electrodes or coils can be used as a stabilizing feedback mechanism. Fast photography visualize Hydrogen small machine infer internal electric field distribution. Using incompressible flow monotonic decay assumptions we obtain components of velocity from temporal evolution cross section. perpendicular density gradient then deduced E=-V...

We study time-dependent Schr\"odinger operators in Aharonov-Bohm geometries where the flux threading hole increases linearly with time. show that quasienergy operator has, these cases, same spectrum as time-independent Stark Hamiltonian on universal covering space. Combining known results Hamiltonians a theorem of Bellissard, we prove energy particle finite ring, smooth background potential, without bound t\ensuremath{\rightarrow}\ensuremath{\infty}.