By moving silica glass in a preprogrammed structure, we directly produced three-dimensional holes with femtosecond laser pulses single step. When distilled water was introduced into hole drilled from the rear surface of glass, effects blocking and redeposition ablated material were greatly reduced aspect ratio depth increased. Straight 4‐μm diameter more than 200 μm deep. Three-dimensional channels can be micromachined inside transparent materials by use this method, as have demonstrated...

In this Letter, we demonstrate theoretically a full-color hologram using spatial multiplexing of dielectric metasurface for three primary colors, capable reconstructing arbitrary RGB images. The discrete phase maps the red, green, and blue components target image are extracted through classical Gerchberg-Saxton algorithm reside in corresponding subcells each pixel. Silicon nanobars supporting narrow spectral response at wavelengths colors employed as basic meta-atoms to imprint...

Abstract Conventional metasurface holograms relying on metal antennas for phase manipulation suffer from strong Ohmic loss and incomplete polarization conversion. The efficiency is limited to rather small values when operating in transmission mode. Here, we implement a high-efficiency transmissive hologram by leveraging the recently developed Huygens’ construct an electric magnetic sheet with up 86% optical of 23.6%. originates simultaneous excitations Mie-type dipole resonances meta-atoms...

We propose a wide-angle, polarization-independent and dual-band infrared perfect metamaterial absorber made of double L-shaped gold patches on dielectric spacer opaque ground layer. Numerical experimental results demonstrate that the has two near-unity absorption peaks, which are result from magnetic polariton modes generated at different resonant wavelengths. In addition, proposed structure also shows good stability in wide range incident anglesθfor both TE TM incidences azimuthal angle φ =...

In this research paper, we study the Fano resonance originating from interaction of in-phased lattice collective and anti-phased supported by a binary silicon nanodisk array. Experimental results agree well with calculations using finite-difference-time-domain method show strong dependence such lineshapes on radius difference particles in Further demonstrate that array can be used as an optical filter offers efficient way to tune linewidth simply changing particles, 12 nm 0.7 corresponding Q...

Abstract As the two dimensional version of functional wavefront manipulation metamaterial, metasurface has become a research hot spot for engineering at will with subwavelength thickness. The wave scattered by gradient metasurface, which is composed periodic supercells, governed generalized Snell’s law. However, critical angle that derived from law circles domain incident angles allow occurrence anomalous reflection and refraction, no free space scattering waves could exist when beyond...

In this work, we numerically and experimentally demonstrate that all-angle negative refraction can be obtained with the acoustic gradient metasurface of subwavelength thickness. The coiling labyrinthine structures are utilized to build desired metasurface, apparent occurring beyond critical incident angle has been validated by simulations experimental measurements, which agrees well theoretical predictions given revised generalized law while taking contribution Bragg scattering into account....

A recently synchronized Janus TMD material with broken out-of-plane symmetry offers a vertical dipole to enhance nonlinear optical behavior. Here, by comparing the second harmonic generation properties of MoS2 and MoSSe monolayers, we investigated nonzero SHG susceptibilities 2D material. three-fold enhancement exists in three stacked bulks compared that monolayer. sensitivity their stack pattern is also found. The symmetry, dipole, intrinsic tunable electronic two-dimensional materials make...

Fault-tolerant implementation of quantum gates is one preconditions for realizing computation. The platform Rydberg atoms the most promising candidates achieving We propose to implement a controlled-$Z$ gate on where an amplitude-modulated field employed induce antiblockade. Gate robustness against fluctuations in Rydberg-Rydberg interaction can be largely enhanced by adjusting field. Furthermore, we introduce Landau-Zener-St\"{u}ckelberg transition target atom so as improve resilience...

We propose how to achieve strong phonon blockade (PB) in a hybrid spin-mechanical system the weak-coupling regime. demonstrate implementation of magnetically induced two-phonon interactions between mechanical cantilever resonator and an embedded nitrogen-vacancy center, which, when combined with parametric amplification motion, produces significantly enlarged anharmonicity eigenenergy spectrum. In weak-driving regime, we show that PB appears along large mean number, even presence...

Circular dichroism (CD) is required in the applications of biological detection, analytical chemistry, etc. Here, we numerically demonstrated large-range switchable CD by controlling phase change Ge2Sb2Te5 (GST) a zigzag array. At amorphous state GST (a-GST), strong and dual-waveband effects are realized via selective excitations electric, magnetic, toroidal resonances. With transition from a-GST to crystalline GST, strengths tailored dynamically large ranges. In detail, magnitudes about...

We present a straightforward approach for achieving periodic photon-magnon blockade in hybrid optomagnonics system, wherein single optomagnonic resonator is connected to two nanotips via chiral exceptional points (EPs). In non-Hermitian systems, the eigenvalues of cavity system coalesce at EPs. explore controllable generation antibunching effect by modulating relative angle between nanotips. Furthermore, we demonstrate that concurrent can be realized without necessitating operation...

Abstract Nonlinear Pancharatnam–Berry phase metasurfaces facilitate the nontrivial modulation for frequency conversion processes by leveraging photon‐spin dependent nonlinear geometric‐phases. However, plasmonic show some severe limitation due to intrinsic high ohmic loss and low damage threshold of nanostructures. Here, geometric‐phases associated with third‐harmonic generation process occurring in all‐dielectric is studied systematically, which are composed silicon nanofins different...

In this work, we utilize the acoustic gradient metasurface (AGM) of a bilayer configuration to realize controllable asymmetric transmission. Relying on adjustable gap between two composing layers, could switch from symmetric transmission at certain value. The underlying mechanism is attributed interference forward diffracted waves scattered by surface bound air-AGM interfaces, which apparently influenced interlayer distance. We further hybrid elements construct desired with tunable and...

Using a microwave-regime cyclic three-state configuration, enantiomer-selective state transfer (ESST) is carried out through two-path interference between direct one-photon coupling and an effective two-photon coupling. A phase difference of $\ensuremath{\pi}$ in the process two enantiomers makes constructive for one enantiomer but destructive other. Therefore only excited into higher rotational state, while other remains ground state. The scheme allows flexibility pulse waveforms time order...

Group IV monochalcogenides exhibit spontaneous polarization and ferroelectricity, which are important in photovoltaic materials. Since strain engineering plays an role the present work, effect of equibiaxial on band structure shift currents monolayer two-dimensional (2D) GeS SnS has systematically been investigated using first-principles calculations. The conduction bands those materials more responsive to than valence bands. Increased compressive leads a drastic reduction gap finally...

In this work, we present a type of binary metasurface (BM) to generate an acoustic Airy beam in air. Two coding bits, rectangular cavity (bit “0”) and waveguide with seven Helmholtz resonators “1”), are adopted construct the structure, which offers degrees freedom manipulate transmitted field. The operating band is capable customizing ultrabroadband 3000–15 000 Hz owing linear-like phase shift high transmittance bits. To verify feasibility design, BM certain parameter (w = 5) fabricated...

Based on the density functional theory calculations, we report stability, electron structure, and potential applications in single-layer (SL) NiX2 (X = S, Se, Te) that show high thermal, dynamical, mechanical stability possess ultralow isotropic Young's modulus. Moreover, these NiS2, NiSe2, NiTe2 monolayers have energy storage capacities of 874, 496, 342 mA h g–1 low diffusion barriers 0.23/0.24/0.27 0.12/0.13/0.12 eV when used as anodes lithium-ion batteries sodium-ion batteries,...

The breaking of the out-of-plane symmetry makes a two-dimensional (2D) Janus monolayer new platform to explore coupling between ferroelectricity and ferromagnetism. Using density functional theory in combination with Monte Carlo simulations, we report novel phase-switchable 2D multiferroic material VInSe3 large intrinsic spontaneous electric polarization high Curie temperature (Tc). structural transition energy barrier two phases is determined be 0.4 eV, indicating switchability...

We propose to implement fast and robust quantum state transfer in symmetrical beam splitters routers through a specific topological edge channel splicing Su-Schrieffer-Heeger--like models, for which small admixture of nonadiabatic character into evolution facilitates the accelerated adiabatic pumping process great extent. Through optimizing coupling engineering, we develop acceleration capacity splitting process, investigate robustness enhancement against disorders environment-induced...

Gratings have been holographically fabricated inside soda–lime glass by two-beam interference of a single 130 fs laser pulse at wavelength 800 nm. Because the grating was localized in focal volume and depth which formed can be controlled translation sample, multiple layers fabricated. As an example, three recorded depths ∼200, ∼400, ∼600 μm, respectively. These gratings read either two recording beams with reduced energy, demonstrates their potential applications integrated optics optical storage.

The dark enhancements of diffraction efficiency in single and multiple gratings are investigated theoretically experimentally phenanthrenequinone doped poly-(methyl methacrylate) materials. It is demonstrated a possibility to improve holographic characteristics the material via enhancement. Nearly 17-fold increment observed after exposure. dependences PQ's concentration on rate enhancement achieved quantitatively. And multiplexing presented as simple efficient method response homogeneity...

Lead-free (1−x/2) K0.5Na0.5Nb0.95Ta0.05O3–x/2Fe2O3 piezoelectric ceramics (x=0, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, and 3.0 mol%) have been prepared by conventional ceramic sintering process. The effects of doped iron element on the structure, dielectric, properties were investigated. introduction ferric oxide (Fe2O3) was effective in improving characteristics refining grain size, reducing micropores increasing density ceramics. bulk reached steady value around 4.52 g/cm3, about 96% theoretical...

In this paper, we demonstrate the combination of nematic liquid crystal with a binary silicon nanohole array to realize high performance Fano resonance based optical modulator. The simulations using finite difference time domain method reveal that sharp profile in originates from interaction in-phased and anti-phased lattice collective hybridized through coupling effects. Experimental results agree very well strong dependence Q factor spectral contrast on radius two arrays. Infiltrated...

Nanojet effects excited by surface plasmon polariton at the shadow-side surfaces of dielectric microdisks positioned on gold films are reported. The nanojet can propagate over several optical wavelengths while still maintaining a subwavelength full-width half-maximum transverse. Due to nature wave, electric field highly confined metal-dielectric interface is enhanced about 30 times. By varying thickness microdisk, formation be flexibly controlled. shows great promise for Raman scattering and...