1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Difference between Material dispersion and waveguide dispersion?

  1. May 4, 2010 #1
    Can someone please explain the difference between Material dispersion and waveguide dispersion?
  2. jcsd
  3. May 4, 2010 #2

    Meir Achuz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    Re: Dispersion

    "Dispersion" is determined by the relation between wave number
    [tex]k(=2\pi/\lambda)[/tex] and frequency [tex]\omega(=2\pi f)[/tex].
    In a medium, the relation is [tex]k=\sqrt{\epsilon\mu}\omega/c[/tex].
    In a wave guide, it is [tex]k=[\sqrt{\epsilon\mu}/c]\sqrt{\omega^2-\omega^2_c}[/tex],
    where [tex]\omega_c[/tex] depends on the dimensions of the wave guide.
    Last edited: May 4, 2010
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Threads - Difference between Material Date
B Difference between relative velocity and effective velocity Dec 28, 2017
A Difference between Hamiltonian and Lagrangian Mechanics Nov 16, 2017