What is the difference between the scattering BC and PML?

Click For Summary
SUMMARY

The discussion focuses on the differences between Scattering Boundary Condition (BC) and Perfectly Matched Layer (PML) in the COMSOL RF module for studying optical interactions. Scattering BC is used to simulate open boundaries where waves can exit the computational domain, while PML is designed to absorb outgoing waves to minimize reflections. The application rules for these boundary conditions differ between far-field and near-field studies, with specific considerations needed for each scenario.

PREREQUISITES
  • COMSOL Multiphysics 5.6 or later
  • Understanding of electromagnetic wave propagation
  • Familiarity with boundary conditions in computational modeling
  • Knowledge of optical interaction principles
NEXT STEPS
  • Research the implementation of Scattering BC in COMSOL RF module
  • Explore the characteristics and setup of PML in COMSOL
  • Study the differences in boundary condition applications for far-field versus near-field analysis
  • Learn about wave absorption techniques in computational electromagnetics
USEFUL FOR

Researchers, engineers, and physicists involved in optical simulations, particularly those using COMSOL for RF applications and boundary condition analysis.

faryafada
Messages
17
Reaction score
0
Hi,
I want to know what is the proper boundary condition in COMSOL RF module to study optical interactions, Scattering BC and PML? or what is the difference between them? also I want to know if the rules are different for application of these two BCs in far-field and near-fields studies?

Thanks,
Farya
 
Engineering news on Phys.org
See here for instance http://www.comsol.com/community/forums/general/thread/12362/
 

Similar threads

Undergrad Scattering Theory: Difference between use of scattering amplitude and Born approximation?
  • · Replies 2 ·
Replies
2
Views
1K
Graduate Difference between "Inverse Scattering" and "Diffraction tomography"?
  • · Replies 1 ·
Replies
1
Views
1K
(Biomedical Engin.) Fluid flow through a semi-porous membrane (COMSOL)
  • · Replies 2 ·
Replies
2
Views
8K
Undergrad Why is there such a difference between the total cross-section data? (simulation vs. experiment)
  • · Replies 1 ·
Replies
1
Views
1K
Undergrad Why X-ray scattering in crystalline solids is elastic?
  • · Replies 5 ·
Replies
5
Views
3K
COMSOL-nanoparticles-PML-scattering formalism in RF module
  • · Replies 38 ·
2
Replies
38
Views
51K
Undergrad Difference between Scattering and Emission of Photons
  • · Replies 25 ·
Replies
25
Views
13K
Undergrad Difference between elastic and coherent scattering
  • · Replies 6 ·
Replies
6
Views
2K
Graduate What Are the Key Insights on Bragg/von Lau Scattering in X-Ray Experiments?
  • · Replies 2 ·
Replies
2
Views
3K
When is the distinction between science fields applicable?
  • · Replies 5 ·
Replies
5
Views
2K