We reveal the existence of a new type surface electromagnetic waves supported by hyperbolic metasurfaces, described conductivity tensor with an indefinite signature. demonstrate that spectrum metasurface consists two branches corresponding to hybrid TE-TM polarization varies from linear elliptic or circular depending on wave frequency and propagation direction. analyze effect losses derive analytical asymptotic expressions.

Transverse spin angular momentum is an inherent feature of evanescent waves which may have applications in nanoscale optomechanics, spintronics, and quantum information technology due to the robust spin-directional coupling. Here we analyze a local density hybrid surface propagating along anisotropic hyperbolic metasurfaces. We reveal that, contrast bulk plane conventional plasmons at isotropic interfaces, can be engineered arbitrary angle with propagation direction. This property allows...

The coupling of light into optical fibers is limited by the numerical aperture (NA). Here, we show that large-area polymer axial-symmetric microstructures printed on silica multimode improve their incoupling performance two to three orders magnitude beyond limit. A ray-optical mathematical model describing impact grating-assisted complements experimental investigation. This study clearly demonstrates improvement nanoprinting fibers, opening new horizons, best our knowledge, for fiber...

Abstract Guided waves are the perfect carriers of electromagnetic signals in planar miniaturized devices due to their high localization and controlled propagation direction. However, it is still a challenge control polarization propagating guided waves. In this work, broadband TE‐TM degeneracy highly localized along an all‐dielectric metasurface subwavelength chain dielectric high‐index cylinders discovered, both theoretically experimentally. Using discovered near‐field degree freedom,...

Abstract Metasurfaces offer great potential to control near- and far-fields through engineering optical properties of elementary cells or meta-atoms. Such perspective opens a route efficient manipulation the signals both at nanoscale in photonics applications. In this paper we show that local surface conductivity tensor well describes resonant plasmonic hyperbolic metasurface far-field near-field regimes, where spatial dispersion usually plays crucial role. We retrieve effective from...

Hyperbolic metasurfaces have gained significant attention due to their extraordinary electromagnetic properties control propagating plane waves, but the excitation and propagation of surface plasmon-polaritons at hyperbolic metasurfaces, called plasmons, been experimentally observed just recently. However, advantages such as hybrid TE-TM polarization discussed below, are not yet fully revealed analyzed. In this paper we focus on numerical experimental characterization waves in frequency...

Coupling of light from free space to optical fibers is essential for many applications, while commonly used step-index provide insufficient coupling efficiencies especially at large angles incidence. Here, we demonstrate record-high achieved with dielectric nanostructures located on single-mode fiber end faces. We introduce a novel approach that allows fabricating the facet via an extended version planar electron-beam based lithography. polarization- and angle-independent into across wide...

Spin-orbital interaction of light attracts much attention in nanophotonics opening new horizons for modern optical systems and devices. The photonic spin Hall effect or Imbert-Fedorov shift takes a special place among the variety spin-orbital phenomena. It exhibits as polarization-dependent transverse usually observed specular scattering at interfaces with anisotropic materials. Nevertheless, polarization mixing caused by anisotropy on is commonly underestimated. In this work, we demonstrate...

A new platform for routing surface electromagnetic waves does so efficiently across a planar while maintaining control of polarization, key steps toward the realization flat optical devices.

Here, we introduce and demonstrate nanoprinted all-dielectric nanostructures located on fiber end faces as a novel concept for the efficient coupling of light into optical fibers, especially at multiple incidence angles across large angular intervals. Taking advantage unique properties nanoprinting technology, such flexibly varying width, height, gap distance each individual element, realize different polymeric axial-symmetric structures, double-pitch gratings aperiodic arrays, placed facet...

The Brewster effect has a number of applications in antireflection coatings, spectroscopy, and polarization optics, but its tunability is still high demand. In this Letter, we discover method angle control with two-dimensional conducting layers. Namely, analyze the angular shift Brewster's depending on surface conductivity layer. First, derive analytical model exact conductivity-dependent solution. Then, investigate cases monolayer graphene plasmonic metasurface. Finally, support our results...

The polarization degree of freedom is an inherent feature plane waves propagating in isotropic homogeneous medium. miniaturization optical systems leads to the high localization electromagnetic waves, but also loss control, namely, breaking TE-TM degeneracy. In this work, we discover near-field for highly localized guided along a dielectric metasurface. We demonstrate opportunity create metasurface with degenerate spectrum required operating wavelength and different constitutive materials....

Optical metasurfaces have great potential to form a platform for manipulation of surface waves.A plethora advanced surface-wave phenomena such as negative refraction, self-collimation and channeling 2D waves can be realized through on-demand engineering dispersion properties periodic metasurface.In this letter, we report on polarization-resolved measurement plasmon supported by an anisotropic metasurface.We demonstrate that subdiffractive array strongly coupled resonant plasmonic...

Precise analysis of light beams is critical for modern applications, especially in integrated photonics, with traditional methods often struggling efficient angular demultiplexing compact environments. Here, we present a novel fiber-based approach that achieves through angle-sensitive coupling nanostructure-enhanced multicore fibers. Our device uses axially symmetric nanoprinted structures to distribute the power spectrum incident over different fiber cores higher diffraction orders. By...

We develop the theory of optical beam shifts (both Goos–Hänchen and Imbert–Fedorov) for case near-normal incidence, when incident angle becomes comparable with angular divergence. The developed uncovers unified origin anomalous shift enhancement via geometric Berry phase singularity. Particularly, we predict large occurring small incidence angles. also propose a simple experimental scheme involving quarter-wave q-plate that allows us to observe giant transverse longitudinal, spatial...

Surface electromagnetic waves are the main carriers of highly localized in-plane signal in planar antennas and photonic devices. However, polarization degree freedom is generally absent for surface as far it still a challenge to excite with necessary state. In this letter, first time, we propose method arbitrary using self-complementary metasurfaces obeying Babinet's duality principle. Namely, demonstrate excitation (i) linear horizontal vertical, (ii) diagonal, (iii) right- left-handed...

Hyperbolic metasurfaces exhibit unique dispersion and polarization properties, making them a promising platform for plethora of photonic applications. At the same time, ability to engineer hyperbolicity via predefined spectral positions metasurface resonances remains notable challenge. Here, we analyze dependencies corresponding limits hyperbolic regime based on square arrays rectangular nanopatches. We show that difference between increases linearly with stretching nanopatch, but this...

Spoof surface plasmon-polariton is a type of wave (SW) propagating at the artificially engineered structures in microwave and terahertz ranges. These SWs are highly important planar photonic on-chip devices, integrated circuits, lenses, sensors, antennas applications. However, it still challenge to control propagation regime such including wavefront shapes directions. In this letter, we study bilayer hyperbolic metasurfaces show that interplay between two layers allows them manage their...

AbstractIn this work, we report on observation of Dyakonov plasmons at an interface with a hyperbolic metamaterial in the mid-IR. The is implemented as CMOS-compatible high aspect ratio grating structure aluminium-doped ZnO (AZO) ridges grown by atomic layer deposition deep trench silicon matrix. dispersion characterized attenuated total reflection method Otto configuration. We demonstrate that propagate broad range directions (a few tens degrees) contrast to classical surface waves (about...

Polarization degeneracy of electromagnetic plane waves in vacuum and any bulk isotropic media is the keynote operational principle many optical devices such as polarizers interferometers. However, surface guided spectra are typically either not degenerated at all or meet only very specific dispersion points. In this paper, we offer a design periodic photonic structure based on zinc oxide (ZnO) nanocylinders providing broadband polarization near-IR frequency range. We analyze impact spatial...