Table 3.

Evaluation of the proposed sensor model with other conventional models with regards to sensitivity (S), FWHM, detection accuracy (DA), the figure of merit (FOM), and quality factor (QF).

$\mathbf{Structure} \left({\mathit{S}}^{\mathit{M}}\right)$	${\mathit{R}}_{\mathit{m}\mathit{i}\mathit{n}}^{\mathit{S}}$ $\left[\mathit{\%}\right]$	${\mathit{\theta }}_{\mathit{S}\mathit{P}\mathit{R}}^{\mathit{S}}$ $\left[\mathbf{deg}\right]$	${\mathit{T}}_{\mathit{m}\mathit{a}\mathit{x}}^{\mathit{S}}$ $\left[\mathbf{dB}\right]$	$\mathit{S}\mathit{R}{\mathit{F}}_{\mathit{f}\mathit{r}\mathit{e}\mathit{q}}^{\mathit{S}}$ $\left[\mathbf{THz}\right]$	$\mathbf{\Delta }{\mathit{R}}_{\mathit{m}\mathit{i}\mathit{n}}^{\mathit{S}}$ $\left[\mathit{\%}\right]$	$\mathbf{\Delta }{\mathit{\theta }}_{\mathit{S}\mathit{P}\mathit{R}}^{\mathit{S}}$ $\left[\mathbf{deg}\right]$	$\mathbf{\Delta }{\mathit{T}}_{\mathit{m}\mathit{a}\mathit{x}}^{\mathit{S}}$ $\left[\mathbf{dB}\right]$	$\mathbf{\Delta }\mathit{S}\mathit{R}{\mathit{F}}_{\mathit{f}\mathit{r}\mathit{e}\mathit{q}}^{\mathit{S}}$ $\left[\mathbf{THz}\right]$	$\mathit{S}$ $\left[\mathbf{deg}/\mathbf{RIU}\right]$	FW-HM $\left[\mathbf{deg}\right]$	DA $\left[1/\mathbf{deg}\right]$	FOM $[{\mathbf{RIU}}^{-1}]$	QF $\left[\mathbf{deg}/\mathbf{RIU}\right]$
Bk7/Au(50 nm)/PBS	0.54	72.60	0.054	104.19	-	-	-	-	-	-	-	-	-
Bk7/Au(50 nm)/Graphene (5 layer)/PBS	14.80	75.05	1.601	1391.5	14.26	2.46	1.547	1287.31	82.0	1.30	0.77	63.07	155.17
Bk7/Au(50 nm)/PtSe2 (2 nm)/Graphene (5 layer)/PBS	35.08	78.10	4.320	1409.3	34.54	5.50	4.266	1305.11	183.3	3.90	0.26	47.00	258.50