Whether you are debugging a complex CHARGE solver simulation, looking for optimized simulation settings, or learning the basics of FDTD, the is the definitive place for Lumerical support. By engaging with this community, you not only solve your current technical hurdles but also contribute to the collective knowledge of the global photonics engineering community.
The forum is categorized to help users find relevant information efficiently. For photonics, the primary area is:
If you are looking for specific help with Lumerical software, I can also look up troubleshooting steps for common error messages like "simulation diverged" or help you find example scripts for your simulation. What are you currently working on? Share public link
Troubleshooting common simulation errors like or mesh convergence issues. lumerical forum
Lumerical updates frequently. Always mention if you are using an older version or the latest Ansys Lumerical release, as certain features or script commands may have changed.
[Product] + brief issue (e.g., [FDTD] Large E-field at monitor boundary )
Which are you using (FDTD, MODE, CHARGE, etc.)? What error message or unphysical result are you seeing? Share public link Whether you are debugging a complex CHARGE solver
Clearly state the optical phenomenon you are trying to capture (e.g., plasmonic resonance, far-field scattering, waveguide dispersion).
Users frequently seek help with sophisticated simulations, such as:
: Show the boundary conditions, source, and mesh. 3. Engage with the Community For photonics, the primary area is: If you
Achieving reliable simulation results is a major focus. In a thread about the "Fluorescence Enhancement" example, a user detailed their struggle with mesh convergence , finding that refining the mesh from 5 nm to 1.25 nm worsened their results. The expert advice included recommendations to ensure the dipole source was correctly positioned on the Yee mesh and to verify PML (Perfectly Matched Layer) thickness.
Moderator/User: That sounds like a guided-mode resonance or possibly a numerical artifact. A few things to check:
The Lumerical Forum is a powerful resource for researchers, scientists, and engineers working in the fields of photonics, electromagnetics, and numerical analysis. By engaging with the forum, users can tap into a collective knowledge base, get help from experts, and stay up-to-date with the latest developments in Lumerical software. Whether you're a seasoned user or new to Lumerical software, the forum offers a wealth of information, resources, and community support to help you achieve your goals. So, join the conversation, ask questions, share your experiences, and unlock the full potential of Lumerical software!
: Photonic integrated circuit (PIC) and system-level modeling.
Increase PML layers, lower the Courant factor (DT factor) below 0.99, or fix unphysical material fits ( or negative imaginary parts).