Table 1 Shows the values of the sensitivity (S), quality factor (QF), figure of merit (FOM), signal-to-noise ratio (SNR), detection limit (δn), and sensor resolution (SR) by increasing the glycerin central defect thickness Ddef from 500 to 1000 nm, at an incident angle θ = 0º, GaN thickness dA = 100 nm, air thickness dB = 200 nm and number GaN/air of periods N = 3 with identification the temperature range, wavelength range and shift direction of each thickness.

From: Maximizing temperature sensitivity in a one-dimensional photonic crystal thermal sensor

Ddef

S (nm/ºC)

QF

FOM (ºC−1)

SNR

δn (ºC)

SR (nm)

Temp. range

Wavelength range (nm)

Shift direction

500

0.098

922.314

0.116

234.037

1356.675

134.215

20–55

780–792

Blue

600

0.114

1169.140

0.152

364.870

1175.792

134.310

20–55

872–886

Blue

700

0.118

795.662

0.097

95.955

1742.350

206.555

20–55

960–980

Blue

800

0.116

1387.554

0.201

671.001

906.304

107.442

20–55

802–814

Blue

900

0.125

1539.678

0.219

453.342

1016.438

120.498

20–55

873–884

Blue

1000

0.135

1184.781

0.169

160.395

1315.690

155.975

20–55

942–956

Blue