Table 1.
Effect of
on
,
, and FWHM
Thickness (
, nm) | Resonance Wavelength (
, nm) | Sensitivity (
, nm/RIU) | FWHM (nm) |
1.330 | 1.340 |
35 | 480 | 507 | 2700 | 14.55 |
40 | 493 | 522 | 2900 | 17.27 |
45 | 502 | 532 | 3000 | 18.18 |
50 | 507 | 538 | 3100 | 22.73 |
55 | 509 | 542 | 3300 | 25.45 |
Table 2.
Effect of Silver Nano-Continuous Grating (i) on
,
, and
for Different
Number
| Wavelength (
, nm) | Average Sensitivity (
, nm/RIU) |
-Square | Wavelength (
, nm) | Sensitivity (
, nm/RIU) |
1.330 | 1.340 | 1.350 | 1.360 | 1.360 | 1.365 |
0 | 502 | 532 | 571 | 623 | 4020 | 0.9851 | 623 | 661 | 7600 |
10 | 522 | 553 | 594 | 651 | 4280 | 0.9817 | 650 | 688 | 7600 |
20 | 536 | 568 | 611 | 671 | 4480 | 0.9807 | 671 | 723 | 10400 |
30 | 549 | 582 | 626 | 688 | 4610 | 0.9804 | 688 | 742 | 10800 |
40 | 559 | 594 | 639 | 704 | 4800 | 0.9804 | 704 | 763 | 11800 |
50 | 573 | 609 | 656 | 725 | 5030 | 0.9785 | 725 | 793 | 13600 |
60 | 586 | 623 | 672 | 755 | 5560 | 0.9654 | 755 | — | — |
70 | 595 | 634 | 685 | 772 | 5820 | 0.9655 | 772 | — | — |
Table 3.
Effect of Silver Nano-Continuous Grating (i) on
,
, and
for Different
Angle
| Wavelength (
, nm) | Average Sensitivity (
, nm/RIU) |
-Square | Wavelength (
, nm) | Sensitivity (
, nm/RIU) |
1.330 | 1.340 | 1.350 | 1.360 | 1.360 | 1.365 |
0° | 502 | 532 | 571 | 623 | 4020 | 0.9851 | 623 | 661 | 7600 |
0.1° | 520 | 553 | 594 | 650 | 4310 | 0.9857 | 650 | 699 | 9800 |
0.2° | 534 | 567 | 608 | 674 | 4610 | 0.9737 | 674 | 717 | 8600 |
0.3° | 543 | 581 | 625 | 689 | 4820 | 0.9848 | 689 | 744 | 11000 |
0.4° | 559 | 594 | 640 | 706 | 4870 | 0.9798 | 706 | 764 | 11600 |
0.5° | 573 | 609 | 656 | 725 | 5030 | 0.9785 | 725 | 793 | 13600 |
0.6° | 581 | 618 | 666 | 740 | 5250 | 0.9750 | 740 | — | — |
0.7° | 590 | 627 | 675 | 757 | 5490 | 0.9659 | 757 | — | — |
Table 4.
Effect of Silver Nano-Continuous Grating (ii) on
,
, and
for Different
Number
| Wavelength (
, nm) | Average Sensitivity (
, nm/RIU) |
-Square | Wavelength (
, nm) | Sensitivity (
, nm/RIU) |
1.330 | 1.340 | 1.350 | 1.360 | 1.360 | 1.365 |
0 | 502 | 532 | 571 | 623 | 4020 | 0.9851 | 623 | 661 | 7600 |
10 | 509 | 541 | 579 | 635 | 4160 | 0.9828 | 635 | 673 | 7600 |
20 | 511 | 542 | 582 | 636 | 4150 | 0.9847 | 636 | 673 | 7400 |
30 | 513 | 544 | 583 | 639 | 4170 | 0.9819 | 639 | 676 | 7400 |
40 | 515 | 546 | 584 | 640 | 4130 | 0.9813 | 640 | 680 | 8000 |
50 | 517 | 547 | 587 | 643 | 4180 | 0.9808 | 643 | 681 | 7600 |
60 | 519 | 549 | 589 | 645 | 4180 | 0.9808 | 645 | 683 | 7600 |
70 | 520 | 550 | 591 | 647 | 4220 | 0.9813 | 647 | 686 | 7800 |
Table 5.
Effect of Silver Nano-Continuous Grating (ii) on
,
, and
for Different
Angle
| Wavelength (
, nm) | Average Sensitivity (
, nm/RIU) |
-Square | Wavelength (
, nm) | Sensitivity (
, nm/RIU) |
1.330 | 1.340 | 1.350 | 1.360 | 1.360 | 1.365 |
0° | 502 | 532 | 571 | 623 | 4020 | 0.9851 | 623 | 661 | 7600 |
0.1° | 508 | 539 | 579 | 635 | 4210 | 0.9824 | 635 | 670 | 7000 |
0.2° | 510 | 542 | 582 | 640 | 4300 | 0.9851 | 640 | 674 | 6800 |
0.3° | 512 | 543 | 584 | 637 | 4160 | 0.9862 | 637 | 677 | 8000 |
0.4° | 515 | 546 | 584 | 641 | 4160 | 0.9800 | 641 | 679 | 7600 |
0.5° | 517 | 547 | 587 | 643 | 4180 | 0.9808 | 643 | 681 | 7600 |
0.6° | 519 | 549 | 590 | 644 | 4160 | 0.9836 | 644 | 684 | 8000 |
0.7° | 522 | 552 | 582 | 647 | 4050 | 0.9571 | 647 | 685 | 7600 |
Table 6.
Performance Analysis of the Proposed Sensor with Silver Nano-Continuous Grating (i)
Refractive Index (
, RIU) | Wavelength (
, nm) | Sensitivity (
, nm/RIU) | Resolution (
, RIU) | Resonance Depth (
, dB/cm) |
1.330 | 573 | 3200 |
| 116.292183 |
1.335 | 589 | 4000 |
| 138.337122 |
1.340 | 609 | 4200 |
| 166.150026 |
1.345 | 630 | 5200 |
| 203.304064 |
1.350 | 656 | 6200 |
| 268.081067 |
1.355 | 687 | 7600 |
| 338.277816 |
1.360 | 725 | 13600 |
| 473.632219 |
1.365 | 793 | N/A | N/A | 883.126221 |
Table 7.
Performance Comparison Between the Proposed Sensor and the Existing SPR Sensors
Sensor | Refractive Index (RIU) | Maximum Sensitivity (nm/RIU) | Maximum Resolution (RIU) |
Ref. [22] | 1.330–1.380 | 5940 |
|
Ref. [23] | 1.360–1.410 | 8000 |
|
Ref. [24] | 1.330–1.350 | 2000 |
|
Ref. [25] | 1.360–1.380 | 3340 | — |
Ref. [27] | 1.330–1.420 | 11000 |
|
Ref. [32] | 1.330–1.340 | 2520 |
|
Proposed | 1.330–1.365 | 13600 |
|