The Majorana fermion, which is its own anti-particle and obeys non-abelian statistics, plays a critical role in topological quantum computing. It can be realized as bound state at zero energy, called mode (MZM), the vortex core of superconductor, or ends nanowire when both superconductivity strong spin orbital coupling are present. A MZM detected zero-bias conductance peak (ZBCP) tunneling spectroscopy. However, practice, clean robust MZMs have not been vortices due to contamination from...

Abstract By virtue of the extraordinary capability manipulating polarization state, amplitude and phase electromagnetic fields, metasurfaces can be employed to display holographic or nanoprinting images with unprecedented spatial resolution. Bringing holography together is an effective way toward information multiplexing. However, current approaches mostly utilize interleaving stacking nanostructures different functionalities construct multiplexed metasurfaces, hence they are equivalent a...

Abstract While conventional photodetectors can only measure light intensity, the vectorial field contains much richer information, including polarization and spectrum, that are essential for numerous applications ranging from imaging to telecommunication. However, simultaneous measurement of multi-dimensional information typically requires multiplexing dispersive or polarization-selective elements, leading excessive system complexity. Here, we demonstrate a near-infrared spectropolarimeter...

The refractive-lens technique has been well developed over a long period of evolution, offering powerful imaging functionalities, such as microscopes, telescopes, and spectroscopes. Nevertheless, the ever-growing requirements continue to urge further enhanced capabilities upgraded devices that are more compact for convenience. Metamaterial fascinating concept inspired unprecedented new explorations in physics, material science, optics, not only fundamental researches but also novel...

Abstract Optical encryption plays an increasingly important role in the field of information security owing to its parallel processing capability and low power consumption. Employing ultrathin metasurfaces optical has promoted miniaturization multifunctionality systems. Nevertheless, with few number degrees freedom (DoFs) multiplexed by single metasurface, both key space encoding are limited. To address this issue, we propose a high-security large-capacity scheme based on perfect...

Metasurface polarization optics have attracted considerable attention due to their ability manipulate independently the wave fronts of different channels with subwavelength scale. Previous methods mainly focused on condition complete conversion, restricting application range metasurface multiplexing. Here, we proposed a generalized framework phase manipulation for optics, which can realize independent control and arbitrary energy distribution conversion efficiency. Based this principle,...

The topological edge state (TES) in a one-dimensional optical lattice has exhibited robust field localization or waveguiding against the structural perturbations that would give rise to fault-tolerant photonic integrations. However, zero mode as kind of TES usually deviates from exact zero-energy finite Hermitian due coupling between these states, which inevitably weaken protection. Here, we first show such breakup modes Su-Schriffer-Heeger lattices and then reveal their recovery by...

Tomography is an informative imaging modality that usually implemented by mechanical scanning, owing to the limited depth-of-field (DOF) in conventional systems. However, recent systems are working towards more compact and stable architectures; therefore, developing nonmotion tomography highly desirable. Here, we propose a metalens-based spectral system with aplanatic GaN metalens (NA = 0.78), which large chromatic dispersion used access focus tuning optical zooming visible spectrum. After...

Spin light (i.e., circularly polarized light) manipulation based on metasurfaces with a controlled geometric phase Pancharatnam–Berry (PB) phase) has achieved great successes according to its convenient design and robust performances, by which the control is mainly determined rotation angle of each meta-atom. This PB can be regarded as global effect for spin light; here, we propose local planar chiral meta-atoms. Planar meta-atoms break fundamental symmetry restrictions do not need these...

Metasurfaces have demonstrated unprecedented capabilities in manipulating light with ultrathin and flat architectures. Although great progress has been made the metasurface designs function demonstrations, most metalenses still only work as a substitution of conventional lenses optical settings, whose integration advantage is rarely manifested. We propose highly integrated imaging device silicon directly mounted on complementary metal oxide semiconductor image sensor, working distance...

Abstract Metasurfaces, simultaneously operating in near‐ and far‐fields, can be employed as a promising candidate to implement different functions, thus significantly improving the information density, security, system integration. Recent works have showcased some approaches for decoupling‐at‐large between far‐field functionalities, but unfortunately, their coupling effects are just reduced mitigated extent rather than eradicated, which turn leads performance limitation of metadevices....

Abstract Flat lenses, including metalens and diffractive lens, have attracted increasing attention due to their ability miniaturize the imaging devices. However, realizing a large scale achromatic flat lens with high performance still remains big challenge. Here, we developed new framework in designing multi-level lenses by light coherence optimization, which enables implementation of large-scale under non-ideal conditions. As results, series polymer diameter from 1 10 mm are successfully...

Microscopy is very important in research and industry, yet traditional optical microscopy suffers from the limited field-of-view (FOV) depth-of-field (DOF) high-resolution imaging. We demonstrate a simultaneous large FOV DOF microscope imaging technology based on chip-scale metalens device that implemented by SiNx array with co- cross-polarization multiplexed dual-phase design dispersive spectrum zoom effect. A 4-mm × obtained resolution of 1.74 μm 200 within wavelength range 450 to 510 nm,...

Replacing traditional refractive lenses with metalenses that have ultrathin and flat architecture could make imaging systems more compact. However, the space between lens image is usually dominating factor in determining bulkiness, it cannot be shortened just by using thinner lenses. Here, we propose a pancake metalens folds optical path at will metacavity consisting of spin-dependent bifacial metasurface mirror. We first verify asymmetric independent functions this metasurface, then...

This study describes the basic principles of optical waveguide refractive index sensing and various design structures sensors. These waveguides generate different resonances, which cause changes in temperature are subsequently used to detect concentration analyses. First, structural characteristics performance indices microring sensor interferometer studied based on waveguide. Second, principle detection mechanism two types employed these sensors analyzed. Then, classified discussed from...

Polarimetry plays an indispensable role in modern optics. Nevertheless, the current strategies generally suffer from bulky system volume or spatial multiplexing scheme, resulting limited performances when dealing with inhomogeneous polarizations. Here, we propose a non-interleaved, interferometric method to analyze polarizations based on tri-channel chiral metasurface. A deep convolutional neural network is also incorporated enable fast, robust and accurate polarimetry. Spatially uniform...

Weyl medium has triggered remarkable interest owing to its nontrivial topological edge states in 3D photonic band structures that were mainly revealed as surface modes yet. It is undoubted the connection of two different media will give rise more fruitful physics at their interface, while they face extreme difficulty high-dimensional lattice matching. Here, we successfully demonstrate non-Hermitian interface complex synthetic parameter space, which implemented a loss-controlled silicon...

An integrated way to generate and manipulate higher-order Poincaré sphere beams (HOPBs) is a sought-after goal in photonic circuits for high-capacity communication systems. Here, we demonstrate novel method on-chip generation manipulation of HOPBs through combining metasurface with optical waveguides on lithium niobate insulator platform. With phase modulation by diatomic geometric metasurface, guided waves are extracted into free space high signal-to-noise ratio the form two orthogonal...

Abstract Microwave absorbers with high efficiency and mechanical robustness are urgently desired to cope more complex harsh application scenarios. However, manipulating the trade‐off between microwave absorption performance properties is seldom realized in absorbers. Here, a chemistry‐tailored charge dynamic engineering strategy proposed for sparking hetero‐interfacial polarization thus coordinating attenuation ability interfacial bonding, endowing polymer‐based composites toughness. The...

Abstract Quantitative phase imaging (QPI) based on the transport-of-intensity equation (TIE) is a powerful technique in label-free microscopy. The image stack required for successful TIE-QPI traditionally obtained by translating object or plane, and optical elements used conventional systems are usually bulky cumbersome. Stable compact methods capable of non-motion zooming can significantly facilitate applications that demand portability. Here, we propose method dispersive metalens. nature...

Logic operation serves as the foundation and core element of computing networks; it will bring huge vitality to advanced information processing with its adaptation in optical domain. As fundamental logic operations, AND exclusive OR (XOR) operations serve a multitude purposes, such their ability cooperate enabling image interpretation. Here, we propose experimentally demonstrate wavelength multiplexed XOR function based on metasurfaces. By combining two cosine gratings distinct frequencies...

Non-Abelian braiding describes the exchange behavior of anyons, useful for encoding qubits quantum computing. Recently, this concept has been realized in classical photonic and acoustic systems. However, these implementations are constrained by adiabatic conditions, necessitating long operation distances hindering practical applications. Here, we conceive demonstrate shortcut to (STA) light three-dimensional silicon chips. Our device comprises trilayer waveguides embedded SU-8 polymer, using...

Plasmonic gap mode in metal-insulator-metal (MIM) structure has proven promising for refractive index sensing due to its near unity absorption. However, the performance of been limited by broad resonance band, which is related high plasmonic loss. In this work, square-patch-based MIM structures are used simultaneous excitation both surface plasmon polariton and Rayleigh anomaly with large absorptions, demonstrate their excellent performances. For anomaly, sensitivity full width half-maximum...

Topological Weyl semimetals (TWSs) with pairs of points and topologically protected Fermi arc states have broadened the classification topological phases provide superior platform for study superconductivity. Here we report nontrivial superconductivity features sulfur-doped Td -phase MoTe2 enhanced Tc compared type-II TWS It is found that S-doped (MoTe2-x S x , ∼ 0.2) a two-band s-wave bulk superconductor (∼0.13 meV 0.26 meV), where superconducting behavior can be explained by s+- pairing...