A new type of multi-layer metamaterial (MM) absorber is represented in this paper, which behave as a dielectric slab transmission band and act an another lower band. The equivalent circuit model each layer MM has been established. line (TL) introduced to analysis the mechanism electromagnetic wave traveling through absorber. Both theoretical experimental results indicate at 21GHz absorptive from 5GHz 13GHz. good match TL measurement verified validity analyzing optimizing performances kind

Plasmonic lithography, which utilizes subwavelength confinement of surface plasmon polartion (SPP) waves, has the capability breaking diffraction limit and delivering high resolution. However, all previously reported results suffer from critical issues, such as shallow pattern depth nonuniformity even over small exposure areas, application technology. In this work, periodic patterns with aspect ratios a half-pitch about 1/6 wavelength were achieved uniformity in square centimeter areas. This...

One key obstacle in fabricating efficient flexible and printable optoelectronic devices is the absence of ideal transparent conductors with superior optical, electrical, mechanical properties. Here, high-performance are demonstrated using ultrathin (<10 nm) doped silver films, which exhibit an averaged visible transmittance 80% without any antireflection coating, sheet resistance less than 20 Ω sq-1, stability over 1000 bending cycles. The conductor prepared by doping additive metal (e.g.,...

Metal-dielectric multilayered metamaterials are proposed to work as wideband spectral-selective emitters/absorbers due the topological change in isofrequency contour around epsilon-near-zero point. By setting transition at border between visible and IR ranges, metal-dielectric become good absorbers/emitters for light reflectors light, which desirable efficient thermal-light interconversions.

Metamaterials, composed of artificial structures with subwavelength unit cells, can be fabricated to achieve gradually refractive indices. By designing the indices properly, a gradient-index planar slab will transform spherical waves plane waves. Using such property, we propose beam-scanning antenna high gain and low sidelobes based on lens horn antenna, where beam direction is controlled by refractive-index distribution. When four lenses are fixed together, get four-beam scanning sidelobes,...

In this work, a special hyperbolic metamaterial (HMM) is investigated for plasmonic lithography of period reduction patterns. It type II HMM (ϵ∥ < 0 and ϵ⊥ > 0) whose tangential component the permittivity ϵ∥ close to zero. Due high anisotropy epsilon-near-zero (ENZ) HMM, only one mode can propagate horizontally with low loss in waveguide system ENZ as its core. This work takes advantage composed aluminum/aluminum oxide films associated unusual expose photoresist layer specially designed...

Abstract The effects of the surface roughness thin films and defects on photomasks are investigated in two representative plasmonic lithography systems: silver film-based superlens multilayer-based hyperbolic metamaterial (HMM). Superlens can replicate arbitrary patterns because its broad evanescent wave passband, which also makes it inherently vulnerable to film imperfections mask. On other hand, HMM system has spatial frequency filtering characteristics pattern formation is based...

Hyperbolic metamaterials are optical materials characterized by highly anisotropic effective permittivity tensor components having opposite signs along orthogonal directions. The techniques currently employed for characterizing the properties of hyperbolic limited in their capability robust extraction complex tensor. Here we demonstrate how an ellipsometry technique based on total internal reflection can be leveraged to extract with improved robustness and accuracy. By enhancing interaction...

Resonant light scattering by metallic and high-index dielectric nanoparticles has received enormous attention found many great applications. However, low-index typically do not show resonant behaviors due to poor confinement caused small index contrast. This Letter describes a simple effective approach drastically enhance the resonance effect of particles partial metal dressing. Mie resonances can now be easily visualized scattered light. peak depends on sphere size reasonable linewidth. A...

Several planar curves that are well known from mechanics, astronomy, acoustics, etc., and used in other branches of optics, such as caustics light robotics, employed for modeling the recently introduced coherence [Opt. Lett.43, 4727 (2018)OPLEDP0146-959210.1364/OL.43.004727]. These have intrinsic relationships between their magnitudes phases and, hence, lead to states not been previously encountered.

Magnetoelectric (ME) antiferromagnetic Cr2O3, being exchange coupled to a ferromagnetic multilayer (Pt/Co/Pt)n, n ≥ 1, is treated as multiphase multiferroic material with sophisticated multifunctional properties. It shown that the bias (EB) of hysteresis loop cannot only be controlled by magnetic freezing field, H fr, but additionally also an external electric E via ME effect Cr2O3. Either gradual shift or complete switching from −H EB +H on field axis are possible. Here influence fr at...

Although plasmonic photolithography can break through the diffraction limit and produce super-resolution patterns, intrinsic high loss from metal severely obstructs its application in practice. Here we proposed a novel method based on dielectric photonic crystal (PC) structure, where nanofilms are analyzed systematically. It is shown that PC efficiently transmit desired high-k waves, which advantageous generating deep subwavelength patterns realizing lithography. Typically, composed of...

This paper presents a comprehensive study of symmetric lateral bipolar junction transistors (LBJTs) fabricated on SOI substrate using CMOS-compatible process; LBJTs find many applications including being local signal amplifier for silicon-nanowire sensors. Our are characterized by peak gain (β) over 50 and low-frequency noise two orders magnitude lower than what typically is the SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> /Si...

The coupling between photons and lattice plasmons in metallic nanostructure arrays makes them good candidates to build radiative surface plasmon polariton (SPP) lasers. We report lasing action from the defect state a second-order distributed feedback SPP cavity. In this device, silver nanoslit array confines SPPs its bandgap, while phase shift section introduces high-quality-factor for lasing. At same time, fundamental order grating diffraction of provides high extraction efficiency photons....

Silicon nanowire (SiNW) field-effect transistors (SiNWFETs) are of great potential as a high-sensitivity charge sensor. The signal-to-noise ratio (SNR) an SiNWFET sensor is ultimately limited by the intrinsic device noise generated carrier trapping/detrapping processes at gate oxide/silicon interface. This trapping/detrapping-induced can be significantly reduced replacing noisy interface with Schottky junction (SJG) on top SiNW. In this paper, we present tri-SJG (Tri-SJGFET) SJG formed both...

This study is aimed at addressing the urgent demand for ultra-micro-precision dispensing technology in high-performance micro- and nanometer encapsulation, connection, assembly manufacturing, considering great influence of colloid viscosity surface tension on process scale. According to principle liquid transfer, a method adhesive transfer that can realize fL–pL levels studied this paper. A mathematical model describing initial droplet volume was established, factors affecting were analyzed...

Temperature has a strong influence on integrated circuit (IC) performance, power consumption, and reliability. However, accurate thermal analysis can impose high computation costs during the IC design process. We analyze performance accuracies of variety time-domain dynamic techniques use our findings to propose new technique that improves by 38--138x relative popular methods such as fourth-order globally adaptive Runge-Kutta method while maintaining accuracy. More precisely, we prove step...

Photo roller lithography systems can generate patterns continuously over large areas by employing flexible photomasks on rotating quartz cylinders. In comparison, plasmonic reach deep sub-wavelength resolution utilizing evanescent waves carrying high spatial frequency components. this work, we demonstrate a system integrating mechanical with specially designed photomask based waveguide lithography. Deep uniform aspect ratios were printed moving substrate. The may find practical applications...

Existing long-span truss bridges typically undergo significant retrofits to improve their resistance against extreme load events, such as the seismic loads, for which bridge may not have been designed or considered originally. However, conventional retrofit measures recommended in most existing codes and specifications be effective providing sufficient alternative path (ALP) redundancy a that is vulnerable sudden member-loss scenarios because of significantly different magnitude demands....

SSLT (Short-offset-Short-Load-Through) is a classical calibration method of VNA (Vector Network Analyser) which needs multiple assembly the standard parts and exists impact phase in millimetre waveband.Aimed that S11 two-port waveguide DUT less than -10dB, simple SLT (Short-Load-Through) presented this paper according to simplified error model.This only carry on short circuit plate matching load one-port VNA, through dual-port.The process correction algorithm simple.Finally, it found...

A one-step fully additive chemical process to fabricate double-sided flexible printed circuit (FPC) is reported, the includes drilling of through-holes, hydrolysis PI surface, adsorption catalyst and selective copper deposition by electroless plating. The mentioned in this paper requires simple operating procedure mild reacting condition. conductive patterns show a resistivity 1.95 μΩ·cm, high adhesion 5B. Surface roughening can increase mechanical anchor between deposited PI, guaranteeing...

This paper mainly studies the mechanism of moving head pattern phenomenon high refresh rate column architecture display products after is reduced. The explained from two aspects. First, brightness positive frame and negative different, loss during cannot average frames. Second, when VCOM adjusted to best, theoretically light dark are same, there will be no pattern, but frequency lowered, leakage current difference amplified, obvious. Due voltage between three terminals TFT ultimately leads...

Color shift or marginal fringe appear in the bilateral alternating drive mode of Dual Gate structures, which is impact ΔVp between near and far points gate positive negative frames on brightness uniformity. This essay discusses mechanism analysis GOA design optimization.