coolWhat's the wedge made of? Each layer a higher refractive index than the last?
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Bee Nice |-|,
Thu 5 Mar 2009, 14:57,
archived)
sort of...... it has a graded plasma frequency, with the same electric and magnetic response. Somewhere about the middle of the wedge (depending on frequency), the refractive index changes sign.
It's a failed trapped rainbow.
(,
Thu 5 Mar 2009, 15:19,
archived)
It's a failed trapped rainbow.