Menu

Discussion Forum

New Discussion
查找

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

How to calculate the photonic band gap?

Posted 2020年12月14日 GMT-5 08:07 RF & Microwave Engineering, Wave Optics Version 5.3 0 Replies

Tianbo Yang
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

How to calculate the photonic band gap of TE mode with a frequency-dependent material using the example "models.woptics.bandgap_photonic_crystal"?

There are serveal questions for me as following:

  1. The nEz in example is expressed as intop1(realdot(ewfd2.Ez, ewfd2.Ez))/A. Why is the ewfd2.Ez rather than ewfd.Ez ？

  2. Why the freq1 is definded by useing 1[V^2/m^2]-nEz ?

  3. How to normalize the field when the electric field components are chosen "in-plane vector". Then, how to define the frequency freq1 under the GLOBAL ODES AND DAES? And how to decide the initial values under EWFD2?

Another question is that how to chose the boundary condition on non-periodical direction when solveing 1-D array.

Thanks for your answer!

0 Replies Last Post 2020年12月14日 GMT-5 08:07
COMSOL Moderator

Hello Tianbo Yang

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content