Table 2 Comparative evaluation of sensitivity for diesel and octane.

From: Enhanced structural tunability and high sensitivity of a THz metasurface absorber for precise automotive fuel characterization

Detection of Fuel

Q-factor

Sensitivity (S) (THz/RIU)

Figure of merit (FOM)

Diesel

304.35

0.12

7.15

Octane

303.53

0.11

6.887

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