Table 2 Shows the values of the parameters sensitivity (S), quality factor (QF), figure of merit (FOM), signal-to-noise ratio (SNR), detection limit (δn), and sensor resolution (SR) at incident angles (θ) varies from 0 to 65º, defect thickness Ddef = 900 nm, GaN thickness dA = 100 nm, air thickness dB = 200nm and number of GaN/air periods N = 3, with identification the temperature range, wavelength range and shift direction of each angle.
From: Maximizing temperature sensitivity in a one-dimensional photonic crystal thermal sensor
θ | S (nm/ºC) | QF | FOM (ºC−1) | SNR | δn (ºC) | SR (nm) | Temp. range | Wavelength range (nm) | Shift direction |
|---|---|---|---|---|---|---|---|---|---|
0 | 0.125 | 1539.678 | 0.219 | 453.342 | 1016.438 | 120.498 | 20–55 | 873–884 | Blue |
5 | 0.296 | 1252.071 | 0.664 | 92.508 | 406.147 | 48.148 | 20–55 | 552–567 | Red |
10 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
15 | 1.606 | 1427.766 | 2.436 | 118.820 | 119.618 | 14.180 | 20–55 | 910–985 | Blue |
20 | 0.108 | 13,816.943 | 2.333 | 455.307 | 1435.123 | 170.133 | 20–55 | 640–645 | Red |
25 | 2.308 | 254.881 | 1.234 | 240.089 | 44.811 | 5.312 | 20–55 | 420–530 | Red |
30 | 10.088 | 35,443.258 | 621.462 | 12,030.150 | 5.691 | 0.674 | 20–50 | 400–700 | Blue |
35 | 2.497 | 1550.879 | 5.196 | 1691.867 | 35.854 | 89.534 | 20–55 | 690–790 | Blue |
40 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
45 | 6.648 | 4464.783 | 50.208 | 4024.852 | 15.004 | 37.468 | 20–55 | 520–760 | Red |
50 | 15.725 | 1535.228 | 28.376 | 333.752 | 9.601 | 150.986 | 20–40 | 700–1050 | Blue |
55 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
60 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
65 | 20.074 | 14,723.294 | 397.182 | 2174.234 | 6.821 | 136.946 | 20–45 | 593–1110 | Red |
