Investigation of multilayer planar hybrid plasmonic waveguide and bends

Abstract

Hybrid metal insulator metal plasmonic waveguide has been investigated at 1550 nm wavelength using frequency-domain electromagnetic solver of computer simulation technology microwave studio. This waveguide overcomes the limitations of conventional plasmonic metal insulator metal waveguide and provides good balance between propagation length and confinement. Propagation length up to 2.5 mm and confinement factor more than 80% have been observed. Waveguide bends such as 90°and S-shaped, based on the presented waveguide have been examined; these bends exhibit more than 90% transmission efficiency in a confinement area of 40 × 200 nm 2. The application of these structures in the design of chip scale integrated circuitry is motivated.

Optical performance of hybrid metal‐insulator‐metal plasmonic waveguide for low‐loss and efficient photonic integration

“…Moreover, due to the presence of the metal, the plasmonic waveguides are usually suffering with large ohmic loss . Conversely, the concept of hybrid plasmonic waveguide (HPW) combines the properties of plasmonic and dielectric waveguides, and it can minimize the issues of both the individual waveguides . Usually, the modes formed in dielectric waveguide are either transverse electric (TE) or transverse magnetic (TM) in nature, whereas that in plasmonic waveguide are of TM nature; hence, the hybrid modes in HPW are of TM nature only .…”

“…[5][6][7] Conversely, the concept of hybrid plasmonic waveguide (HPW) combines the properties of plasmonic and dielectric waveguides, and it can minimize the issues of both the individual waveguides. [8][9][10][11][12][13] Usually, the modes formed in dielectric waveguide are either transverse electric (TE) or transverse magnetic (TM) in nature, whereas that in plasmonic waveguide are of TM nature; hence, the hybrid modes in HPW are of TM nature only. 8 Due to ultra-small size of the nanophotonic HPW waveguides/devices, the packaging density enhances substantially, which is determined by the coupling length between the two parallel HPWs.…”

“…The achievement of deep‐subwavelength power confinement and eligible coupling of the HPWs, have potential applications in the design of nanoscale optical and optoelectronics devices. Different types of planar and cylindrical HPW structures, such as hybrid metal‐insulator‐metal (HMIM), hybrid insulator–metal–insulator (HIMI), hybrid dielectric loaded (HDL), metal cap, and hybrid metal–insulator (HMI) have been reported to reduce the propagation losses, and to enhance the light confinement with the minimization of device dimension. However, the fabrication of cylindrical waveguide is quite complicated.…”

Sinusoidal Bragg grating based on hybrid metal insulator metal plasmonic waveguide

“…A study on plasmonic waveguide based on hybrid IMI (HIMI) has been reported providing long range propagation and sub-wavelength confinement [7]. To further enhance the light confinement and to lessen the propagation losses, a multi-layered hybrid MIM (HMIM) plasmonic waveguide has been reported [8]. The components like bends, couplers, power dividers, ring resonators and logic gates have been reported earlier based on HMIM plasmonic waveguides [8][9][10].…”

“…To further enhance the light confinement and to lessen the propagation losses, a multi-layered hybrid MIM (HMIM) plasmonic waveguide has been reported [8]. The components like bends, couplers, power dividers, ring resonators and logic gates have been reported earlier based on HMIM plasmonic waveguides [8][9][10]. However, there are only a few reports on Bragg reflectors and filters based on HMIM plasmonic waveguide [11], but more are needed to be explored.…”