Surface Plasmon Polaritons (SPPs) - Introduction and basic properties
Surface Plasmon Polaritons (SPPs) - Introduction and basic properties
Surface Plasmon Polaritons (SPPs) - Introduction and basic properties
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Dispersion in polar crystals - phonon polaritons<br />
Dispersion relation for<br />
k<br />
2<br />
2 2<br />
ω ω<br />
= ε = ε<br />
2 2<br />
c c<br />
photon like<br />
γ = 0<br />
2 2<br />
ω −ω<br />
L ( ωs<br />
) 2 2<br />
ω −ω<br />
T<br />
strong coupling of mechanical <strong>and</strong><br />
electromagnetic waves, polariton like<br />
γ = 0<br />
between TO <strong>and</strong> LO<br />
there is no solution for<br />
real values ω <strong>and</strong> k<br />
frequency gap:<br />
E ∝ e<br />
ω<br />
−i<br />
t −kr<br />
e<br />
no propagation<br />
reflection
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