Recent content by adamjford

  1. A

    Graduate Complex dielectric constant implies absorption?

    Thanks everybody for all your help. Much appreciated!
  2. A

    Graduate Complex dielectric constant implies absorption?

    Also... will a negative imaginary part correspond to the medium transferring energy to the wave, as opposed to absorbing from it?
  3. A

    Graduate Complex dielectric constant implies absorption?

    Thanks! And my reasoning is sound, yeah?
  4. A

    Graduate Complex dielectric constant implies absorption?

    Thanks for the reply, I've used Omar's "Elementary Solid State Physics", Kittel, and the study guide given to us by our lecturer. Your second method sounds good to me... I think the penny may finally drop if I can firstly show that dQ/dt is the integral you mentioned, and subsequently show that...
  5. A

    Graduate Complex dielectric constant implies absorption?

    Hi everyone, My very first post after simply using physicsforums as a (very) handy FAQ resource. Okay, so my question is probably pretty simple, but I've been unable to find anything on here already. How does a complex dielectric constant imply the absorption of EM radiation? I...