A compact wavelength demultiplexing structure based on arrayed metal-insulator-metal (MIM) slot cavities is proposed and demonstrated numerically. The structure consists of a bus waveguide perpendicularly coupled with a series of slot cavities, each of which captures SPPs at the resonance frequency from the bus waveguide and tunes the transmission wavelength by changing its geometrical paramete...

In this paper, we have proposed two novel plasmonic demultiplexing structures based on metal-insulator-metal surfaces which, beside their compact size, have a very good transmission spectrum. The impact of the key internal parameters on the transmission spectrum is numerically analyzed by using the twodimensional (2D) finite difference time domain (FDTD) method. The proposed structures could be...

Abstract In this paper, a sub-wavelength metal-insulator-metal (MIM) waveguide structure is proposed by using cross-shape rectangular cavity, of which wings are coupled with two cavities. Firstly, cavity placed between the input and output MIM waveguides. According to mutual interference bright dark modes, three Fano resonant peaks generated. Secondly, adding on left wing cross shaped one, five...

Metal–insulator–metal (MIM) waveguides are demonstrated which have electrically pumped semiconductor gain medium at their core. In particular electrical contacts made well away from the optical mode and carriers transported to via pathways a few tens of nanometers thick. Wet chemical etching is employed form cores, can widths on order 150 (nm). Total thickness layers between metal sheets in MIM...

Plasmonic metal-insulator-metal waveguide (MIM WG) is a promising building block of devices plasmonic computing system, and metal-semiconductor-metal (MSM) WG offers high-speed detection plasmon signals. MIM MSM couplers are an essential component any integrated system that requires interface between the electronic circuits. However, have not yet been explored systematically studied. This work ...

We design a plasmonic modulator which can be utilized as a compact active device in photonic integrated circuits. The active material, barium titanate (BaTiO3), is sandwiched between metal plates and changes its refractive index under applied voltage. Some degree of switching of ferroelectric domains from the in-plane to out-of-plane orientation provides the change of the refractive index, whic...

Abstract A simple yet accurate model for the transmission of surface plasmon polaritons (SPPs) in a finite metal–insulator–metal (MIM) waveguide to sides apertures is proposed and demonstrated be more than available models. It as using magnetic current density across plane aperture whose value defined by SPPs with any number modes through equivalence principle. Then, generated on both are extra...

The resonant coupling of optical microcavities to waveguides is important in photonic devices. In this paper, a horn-shaped cavity structure designed on the side metal–dielectric–metal waveguide, and between waveguide simulated by finite-difference time-domain method coupled mode theory. It found that local modes appear cavity. Second, geometric parameters are changed, influence structural tran...

Silicon nitride waveguides provide low propagation loss but weak mode confinement due to the relatively small refractive index contrast between the Si₃N₄ core and the SiO2 cladding. On the other hand, metal-insulator-metal (MIM) plasmonic waveguides offer strong mode confinement but large propagation loss. In this work, MIM-like plasmonic waveguides and passive devices based on horizontal Cu-Si...