Table 5 The permittivity of the host dielectric material used at wavelength 633 nm.

From: Angular surface plasmon resonance-based sensor with a silver nanocomposite layer for effective water pollution detection

Materials

Permittivity (εd)

\({\text{S}}=\frac{{\Delta \theta }}{{\Delta n}(0.01)}\left(\circ/\text{RIU}\right)\)

Rmin (ns.m = 1.33)

Ref

MgF2

1.896

386.88

0.061

39

SiO2

2.122

398.86

0.062

40

AL2O3

3.118

416.64

0.061

41

BaTiO3

5.780

419.16

0.071

30

TiO2

6.674

421.35

0.072

42

BiFeO3

8.809

423.45

0.073

43

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