Clarifying Variable Definitions

- January 27, 2022 at 3:20 pm
  mwhitby
  Subscriber
  Hello, I'm trying to look more into how FDE solver works and I'm following this link. https://support.lumerical.com/hc/en-us/articles/360034396734-FDE-solver-analysis-Mode-List-and-Deck
  My questions are:
  What does lambda_0 represent (As in the E(z) equation)?
  What does k_0 represent (as in the neff formula)?
  What does n represent (As in E(z) equation)?
  Thanks!
- January 27, 2022 at 5:48 pm
  
  Guilin Sun
  Ansys Employee
  
  We know that for any mode, it has an eigen frequency and wavelength. so
  lambda_0 is the wavelength in vacuum;
  k_0 is the wave number , 2Ipi/lambda_0;
  n is the real part of (effective) refractive index.
- January 28, 2022 at 12:54 am
  
  mwhitby
  Subscriber
  
  Thanks!

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