Table 5 Theoretical calculations showing numerical values of refractive index, resonance peak, sensitivity, \({\uplambda }_{\mathrm{FWHM}}\), Q- factor and FOM due to change in the temperature of defect layer sample at dd = 200 nm, when the angle of light incidence θ = 0° and N = 5 period.

From: A temperature sensor based on Si/PS/SiO2 photonic crystals

Temperature (°C)

Refractive index (RIU)

Resonance peak (nm)

Sensitivity (nm/°C)

\({\lambda }_{FWHM}\) (nm)

Q- factor

FOM

25

1.45

769.4

0.4

1923.5

100

1.451

775.8

0.085

0.35

2216.6

0.0243

200

1.452

784.2

0.084

0.3

2614

0.28

500

1.456

808.7

0.083

0.2

4043.5

0.42

900

1.462

839.8

0.0804

0.1

8398

0.8