​
number of electrons
1
oscillator strength 1
0.5
resonant frequency 1
1
damping factor 1
0.1
oscillator strength 2
0.5
resonant frequency 2
3
damping factor 2
0.1
oscillator strength 3
0
resonant frequency 3
6
damping factor 3
0.1
1×10
15
2×10
15
3×10
15
4×10
15
5×10
15
6×10
15
0.5
1.0
1.5
2.0
2.5
3.0
3.5
refractive index vs. frequency
1×10
15
2×10
15
3×10
15
4×10
15
5×10
15
6×10
15
0.2
0.4
0.6
extinction coefficient vs. frequency