Table 1.

Performance of sensors based on perfect absorption in the near-infrared region.

References	λ (nm)	S (nm/RIU)	FOM (RIU−1)
[12]	1711	1240.8	123.45
[13]	2103	1445	28.8
[14]	1649	260.4	2.91
[49]	1728	900	15
[50]	1159	959	16.54
[54]	1536	150	25
[55]	1541	1170	1054
[56]	918	885	110
[57]	907	991	124
This work	1318	1317	756