Table 3 N ITO carrier concentration.

From: Active control of dielectric singularities in indium-tin-oxides hyperbolic metamaterials

HMM ITO-SiO2

N carrier concentration [cm−3]

1. ITO

3.5·1020

2. ITO

4.6·1020

3. ITO

5.8·1020

4. ITO

6.4·1020

5. ITO

7.0·1020

6. ITO

7.6·1020

7. ITO

8.1·1020

8. ITO

8.6·1020

9. ITO

9.1·1020

10. ITO

9.6·1020