CHPW device simulation
This protocol is extracted from research article:
Record Purcell factors in ultracompact hybrid plasmonic ring resonators
Sci Adv, Aug 2, 2019; DOI: 10.1126/sciadv.aav1790

The effective index and propagation loss of the CHPW mode were calculated via 2D finite element method simulation using the commercial Lumerical Mode Solutions software. Metallic boundary conditions were used to terminate the 2 μm by 2 μm computational domain. Grid sizes of 0.1, 1, and 2.5 nm were used to mesh the Al thin film, the SiO2 spacer layer, and the rest of the waveguide structure, respectively. The top Si layer was taken to be crystalline in the simulations. The refractive indices of the materials at λ = 1.55 μm are as follows: nSi = 3.4784, nSiO2 = 1.44, and nAl = 1.44 + 16i.

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