Refraction of light pulse

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When a pulse of light enters a denser medium(slow medium) then is there phase shift or rather it passes unshifted?
 

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  • #2
phinds
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When a pulse of light enters a denser medium(slow medium) then is there phase shift or rather it passes unshifted?
Interesting question. I can't give an answer other than my opinion which is that it does not ... it just slows down a bit. To me, it seems as though a phase shift as it enters the medium would imply a discontinuity and I can't see that happening.
 
  • #3
Doc Al
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When a pulse of light enters a denser medium(slow medium) then is there phase shift or rather it passes unshifted?
There is no phase shift of the transmitted pulse. (There will be a phase shift of the reflected pulse.)
 

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