Table 3 The values of resonance peak, FWHM, TR, QF, sensitivity and FOM; Air, O2, CH4, C2H2, C2H6 sensor devices.

From: Sensitivity and quality factor improvement of photonic crystal sensors by geometrical optimization of waveguides and micro-ring resonators combination

Samples

Reflective Index

λ (nm)

FWHM (nm)

TR (%)

QF

Sensitivity (nm/RIU)

FOM

Air

1.000273

819.87

0.31

96.6

2664.7

Ref

Ref

Oxygen (o2)

1.0002916

819.99

0.31

96

2645.1

6451

2080

Methane (CH4)

1.00044023

820.06

0.312

96

2628.4

1136

3641

Acetylene (C2H2)

1.00055994

820.17

0.311

97.3

2637.2

1045

3360

Ethane (C2H6)

1.00074873

820.28

0.312

97

2629.1

862

2762

Back to article page