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How to compute Poynting vector in comsol
Posted Feb 6, 2024, 5:26 a.m. EST Electromagnetics, Wave Optics Version 6.1 1 Reply
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Hello, I am a user of COMSOL. I am conducting simulation and modeling related to optical fibers and I want to calculate the loss of the effective material. After consulting relevant literature, I found that it is necessary to calculate the Poynting vector in the z-direction. How can I set the relevant variables for calculation in COMSOL? Specifically, it involves the cross product of the electric field and the conjugation of magnetic field, and I am not sure how to input the formula. I hope someone can help me solve this problem. The relevant formulas are provided in the attachment. Thank you so much for your assistance. I am truly grateful for your help.
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In the RF module, the three components of the Poynting vector are directly available in post processing, as (emw.Poavx, emw.Poavy, emw.Poavz).
-------------------Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara