Group velocity and reflective index relationship

  • Thread starter JayKo
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  • #1
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Main Question or Discussion Point

how these two are related to each there? if refractive index is given as a function of angular frequency, how both are related? reflective index= omega*c / k.anyone?
 

Answers and Replies

  • #2
Claude Bile
Science Advisor
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Group velocity is equal to;

[tex]\frac{d\omega}{dk}[/tex]

Where

[tex] k = \frac{k_0}{n}[/tex]

Where [itex]k_0[/itex] is the free-space wave-vector and [itex]n[/itex] is the refractive index of the medium.

Claude.
 
  • #3
128
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hi Claude, thanks :D :D ;)
 

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