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Equation of relative permitivitty as a function of refractive indices.
Posted 3 ott 2020, 19:04 GMT-4 2 Replies
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Good night!
I would like to know why the equation is of relative permitivitty as a function of the refractive indices in the COMSOL differs from that of the literature.
epsilon_r: (n - k)² = (n² + k²) - 2ink - Comsol
epsilon_r: (n² - k²) + 2ink - Literature.
Thank you!
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Hmm.
See https://en.wikipedia.org/wiki/Refractive_index#Complex_refractive_index
This may have to do with the choice of the sign in the exp(i omega t) term?
Scientific Applications & Research Associates (SARA) Inc.
www.comsol.com/partners-consultants/certified-consultants/sara
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It may be because of the harmonic response in metamaterials. I have to investigate further. Thank you!