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Results tagged with plasmon
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user 16713
The quantum of plasma oscillation, arising from the quantisation of plasma oscillations
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Difference between Surface plasmon and Localised surface plasmon
So instead of having to match two dispersion relations with different group velocities, you just have to match the localized surface plasmon energy with the vacuum energy. … Pictorially, you can imagine the dispersion of a nano particle plasmon as a horizontal line which is guaranteed to intersect the light cone. …
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Exciting surface plasmon polaritons - what is the purpose of air gap in Otto configuration?
I believe that in the perfect configuration for SPP you want to have total internal reflection of the incident beam which gives you an evanescent wave with the right phase matching (if you tune the ai …
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3
votes
Why does plasmon have higher energy than phonon?
Fundamentally the plasmon is at higher energy because electrons weigh much less that atoms. In fact phonons are simply plasmons of the atoms. …
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0
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Bulk plasmon: why can't they be excited by natural light?
The dispersion relation for a bulk plasmon is
$\omega_{plasmon}(k)=\omega_0+\beta k^2$
This curve will always have an intersection with the light cone. … To make this even more concrete, below is the reflectivity of silver showing a plasmon absorption at roughly 330nm. This is known as the plasma edge. …
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