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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2<br />
1,6<br />
1,2<br />
0,8<br />
0,4<br />
0<br />
-0,4<br />
-0,8<br />
eps'<br />
Weak <strong>and</strong> strong molecular vibrations<br />
weak oscillator: ε‘ > 1<br />
wavenumber / cm -1<br />
eps''<br />
860 880 900 920 940<br />
caused by: molecular vibrations<br />
examples: PMMA, PS, proteins<br />
1<br />
0,8<br />
0,6<br />
0,4<br />
0,2<br />
0<br />
-0,2<br />
-0,4<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
-5<br />
-10<br />
strong oscillator: ε‘ < 0<br />
eps' eps''<br />
860 880 900 920 940<br />
wavenumber / cm -1<br />
crystal lattice vibrations<br />
SiC, Xonotlit, Calcite, Si 3 N 4<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
-5<br />
-10
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