The paper analyzes the summation of powers two sources in a hemispherical open resonator (OR) during its tuning. first higher axially asymmetric TEM10q oscillation mode is excited resonator. A circuit with an E- tee waveguide proposed, which makes it possible to research using Gunn diode. Studies conducting part millimeter range have been undertaken. It shown that coefficient OR slot coupling e...

We proposed an all-optical plasmonic switch based on metal-insulator-metal structures. used the intrinsic nonlinear properties of gold to implement switch. The consists a bus waveguide side coupled with pair asymmetric vertical cavities. obtained transmission spectrum structure for low input intensities. results showed that sharp dip occurs at wavelength 860 nm. Due and Kerr effects, has high r...

We present a numerical approach to efficiently calculate spin-wave dispersions and spatial mode profiles in magnetic waveguides of arbitrarily shaped cross section with any non-collinear equilibrium magnetization that is translationally invariant along the waveguide. Our method based on propagating-wave dynamic-matrix by Henry et al. (Ref. 19) extends it arbitrary sections using finite-element ...

A compact, coplanar waveguide (CPW) fed asymmetric slot antenna with dual operating bands is proposed. The slot is modified rectangular in shape and asymmetrically cut in the ground plane. A hexagonal patch fed by a two-step CPW is used to excite the slot. The feed itself is slightly asymmetric (shifted, with unequal ground planes). The asymmetric cuts on the slot together with the feed line as...

In order to implement an integrated optical quantum circuit, designing waveguides based on the quantum box is of prime importance. To do this we have investigated optical waveguide both with and without optical pumping. The rate of absorption and emission using an array of AlGaAs/GaAs quantum box core/shell structure in the optical waveguide with various pumping intensities has computed. By con...

A photonic crystal-based TE to TM polarization converter for integrated optical communication is proposed in this paper. The photonic crystal consists of air circular-holes in slab waveguide. The radius of holes are determined to be 291nm having lattice constant of 640nm using the gap map and band diagram. The polarization converter is composed of an InGaAsP triangular-shaped waveguide on SiO2 ...

It is shown theoretically that a GaAs/AlGaAs laser diode design using an asymmetric waveguide structure and bulk active layer (AL), located close to the p-cladding, can provide high output power in single, broad transverse mode for short-wavelength (<0.9 ?m, matching spectral range of efficiency silicon photodetectors) pulsed emission nanosecond pulse duration region, typically <<100 ns. The de...

We investigate coherent single-photon transport in a waveguide-QED structure containing two giant atoms. The unified analytical expressions of the scattering amplitudes applicable for different topological configurations are derived. spectroscopic characteristics parameter regimes, especially asymmetric Fano line shapes and electromagnetically induced transparency (EIT)-like spectra, analyzed d...

A near-perfect narrow-band graphene-based absorber was fabricated using a resonant system integrated with an asymmetric meta-grating at wavelength of 1550 nm. By optimizing the gap between two grating strips, absorption monolayer graphene can be increased to 99.6% owing strong field confinement bottom zero-contrast (ZCG). The position spectrum could adjusted by tailoring period or thickness wav...