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Surface charge density plot in RF module
Posted 21 déc. 2022, 06:18 UTC−5 RF & Microwave Engineering, Wave Optics, Results & Visualization Version 6.0 1 Reply
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Hi Now I'm studying plasmonic nanoparticle.
I can get scattering, absorption and electromagnetic field enhancement.
But I wanna get surface charge density from simulation result.
someone said write rho=epsilon0_const(nxemw.Ex+nyemw.Ey+nzemw.Ez) into comsol but actually I'm a beginner at COMSOL. So I cannot get how to do. If that expression is right where should i put that expression? I already put that in variables section but error message is occured they said nx is undefined value. Please explain A to Z for surface charge density plot.
I'll attach some example and my comsol page that I want. additionally my nanoparticle is gold nanocube
Please help me.
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nx, ny, and nz are defined on surfaces. Do a surface plot. And plot the quantity epsilon0_const*(nx*emw.Ex+ny*emw.Ey+nz*emw.Ez) .
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