Surface magnetoplasmons (SMPs) in a basic physical model for the terahertz regime, which consists of semi-infinite magnetized semiconductor with dielectric cladding terminated by metal slab, are theoretically investigated. The dispersion properties such SMPs analyzed and examined detail. It is shown that may follow three different kinds diagrams, depending on applied dc magnetic field intensity. Complete one-way propagation operates within band gap available SMPs, bandwidth reaches maximum...

This paper presents a proposal of taking the left-handed material as structural defects one-dimensional photonic crystals and uses transfer matrix method to analyze band-gap that structure. The simulation result shows structure investigated can be considered narrow pass band optical filter. By tuning refractive index material, ideal transmission rate in is higher 99.99%, while lower than 0.01%. In addition, we show bandwidth increased by reducing cycle number crystals.

Magneto-optical and regular photonic crystals with triangular lattice are designed to construct one-way waveguides. Accordingly, two types of efficient beam splitters input channels proposed investigated. One the is a 1×2 splitter, which achieves 50/50 splitting based on structural symmetry. Since both output waveguides, this splitter immune interferences at ends. The other 1×3 in one channel waveguide others It shown that can provide equal ratios guiding band if defects proper parameters...

A photonic crystal (PhC) cavity formed by a closed interface between dielectric PhC and magnetooptical (MO) material is proposed analyzed theoretically. It shown that such can support one-way rotating modes thus the modal fields at different frequencies have similar pattern. The loss effect of MO taken into consideration for solution quality-factors cavity. coupling with state waveguide also studied through numerical simulations. Simulation results show mode only interacts propagating in...

Because the dispersion properties of surface magnetoplasmons (SMPs) in a magnetized plasmonic material closely depend on its cladding dielectric, it is possible to completely trap SMPs system consisting with dielectric heterostructure. By using semiconductor, our finite element simulation (performed software COMSOL) shows that terahertz one-way such can be trapped at interface heterostructure and hence, focused subwavelength-scale hotspot dramatically enhanced field generated. Moreover, SMP...

We theoretically demonstrate a subwavelength spoof surface-plasmon-polariton (SPP) microcavity on planar metallic surface working at the terahertz regime with high-quality factor and ultra-small mode volume. The is based plasmonic metamaterial notions, it consists of an easy-to-manufacture circular aperture bell-shaped core. It shown that such structure can sustain SPP eigenmodes whose fields are tightly trapped within microcavity. Using proposed structure, total Q 1000 (including losses...

We demonstrate the design, fabrication, and characterization of side-coupled airmode nanobeam photonic crystal cavities in silicon-on-insulator platform. Results show that repeatable devices achieve similar high loaded quality factors (>10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sup> ) large optical energy ratio low refractive region. The unload Q-factors fabricated are estimated to exceed 10...

A nanoantenna that consists of a pair perpendicular diabolo metal elements with common central junction is proposed for creating magnetic field enhancement. It shown such can generate single hot spot any polarization state in near-infrared frequency range, strongly confining and enhancing under less restrained conditions. The spectral response the be tailored as will by altering its geometric parameters. Moreover, this cross-diabolo preserve character in-plane dipole far-field patterns high fidelity.

Single silicon nanobeam photonic crystal cavity based sensors are systematically analyzed and designed. By using perturbation theory numerical simulations, both dielectric-mode air-mode cavities extensively investigated in terms of sensitivity (S), figure merit (FOM), detection limit (DL), footprint size, coupling scheme. The analytical study reveals a 1176 nm/RIU maximum 5070 for sensors, due to the absorption light near 1550 nm wavelength. when water is used as carrier fluid. Design high...

This paper proposed a kind of guard traces based on subwavelength periodic structure to reduce the far-end crosstalk (FEXT) parallel microstrip lines in PCB. technology can be used improve false triggering and signal transmitting capacity multiconductor transmission line circuit system. In order explore present novel trace effect isolating electromagnetic interference (EMI), frequency response mutual capacitance inductance overall system was provided an equivalent model built. comparison...

In this letter, we exhibit the design of an ultrawideband antenna, covering WLAN, WIMAX, and forthcoming 5G communications band, i.e., from 2.3 to 6.1 GHz, by using natural oscillating modes a split ring resonator (SRR). The antenna is composed radiating SRR coplanar waveguide feeding structure. excitation multiple resonances on single achieved through offset technique. order improve impedance bandwidth proposed width SRR's branch tuned, several slits are carefully designed ground region....

This work was sponsored by the Zhejiang Provincial Natural Science Foundation of China (LY14F030013, LY17F050008 and LY18F020025); (NSFC) (61605097).

This paper addresses the design of safety certificates for stochastic systems, with a focus on ensuring long-term through fast real-time control. In environments, set invariance-based methods that restrict probability risk events in infinitesimal time intervals may exhibit significant risks due to cumulative uncertainties/risks. On other hand, reachability-based approaches account future require prohibitive computation decision making. To overcome this challenge involving stringent vs....

Consumption plays a crucial role in peoples daily lives. In recent years, Chinas consumer market has faced urgent needs for consumption transformation and heavy pressure from economic downturn. As an important component of everyday wealth savings, there is close relationship between changes house prices the market. There been heated debate academic community regarding positive or negative two. The study keeps focus on market, attempting to reveal effects price has. This article extracts...

It has been recently reported that the unit cell of wire media metamaterials can be tailored locally to shape flow electromagnetic waves at deep-subwavelength scales [Nat. Phys.9, 55 (2013)NPAHAX1745-247310.1038/nphys2480]. However, such bulk structures have a thickness least order wavelength, thus hindering their applications in on-chip compact plasmonic integrated circuits. Here, based upon Sievenpiper "mushroom" array [IEEE Trans. Microwave Theory Tech.47, 2059...