. 2020 Apr 1;20(7):1972. doi: 10.3390/s20071972

Table 1.

Performance of the different sensors based on the LMR detailed in this paper. A wide range of applications has been developed based on this phenomenon using a variety of materials. The sensors are sorted by coating material, configuration setup, and application.

Material	Configuration	Refractive Index Range	Wavelength	Application/Sensitivity	Ref.
ITO + PAH–PAA	200 μm MMF	N/A	1430	Relative Humidity: 0.833 nm/%RH	[19]
ITO	200 μm MMF	N/A	750	Turbine oil degradation: 0.15 × 10⁻³ nm/h	[27]
ITO	200 μm MMF	N/A	550	Immunoglobulin G LOD: 3.5 μg/L	[29]
ITO	400 μm MMF	N/A	600	Ketoprofen: 1400.86 nm/M LOD: 0.536 mM	[20]
ITO + ITO NPs	600 μm MMF	N/A	400	H₂ Gas: 0.71 nm/ppm	[7]
ITO	D-shaped	1.365–1.38	1250	Refractive Index: 8742 nm/RIU	[28]
ITO	D-shaped	1.447–1.449	1280	Refractive Index: 304,361 nm/RIU	[16]
ITO + PAH–PSS	D-shaped	N/A	1445	CRP: 10.61–169.93 nm/mg L⁻¹ LOD: 0.0625 mg/L	[21]
ITO	Coverslip	1.33–1.37	800	Refractive Index: 1405 nm/RIU	[25]
ITO	Coverslip	N/A	570	Relative Humidity: 0.116 nm/%RH	[26]
SnO₂	200 μm MMF	N/A	1100	Turbine oil degradation: 0.27 × 10⁻³ nm/h	[27]
SnO₂ + GO	200 μm MMF	N/A	537	Ethanol: 0.525 nm/%Eth(v/v)	[37]
SnO₂–PSS + SnO₂ NPs	600 μm MMF	1.33–1.38	840	Refractive Index: 4704 nm/RIU	[35]
SnO₂	Etched SMF	N/A	1550	Relative Humidity: 1.9 nm/%RH	[33]
SnO₂ NPs + α-Fe@Sn CS	Unclad Fiber	N/A	370	Arsenite: 1.31 nm/μg L⁻¹ LOD: 0.99 μg/L	[36]
SnO₂	D-shaped	1.321–1.326	1380	Refractive Index: 14,501 nm/RIU	[16]
SnO₂	D-shaped	1.448–1.449	1200	Refractive Index: 1,087,889 nm/RIU	[32]
SnO₂	D-shaped	N/A	1445	Immunoglobulin G LOD: 0.15 ng/L	[29]
SnO₂	D-shaped	N/A	1400	Dimer-D LOD: 10 and 100 ng/mL in buffer and human serum resp.	[34]
SnO₂	MCM	N/A	750	Immunoglobulin G LOD: 0.6 mg/L	[38]
SnO₂	Coverslip	1.33–1.37	900	Refractive Index: 1800 nm/RIU	[25]
In₂O₃	200 μm MMF	1.32–1.37	1400	Refractive Index: 4926 nm/RIU	[39]
In₂O₃ + PAH–PAA	200 μm MMF	N/A	1020	Relative Humidity: 0.935 nm/%RH	[19]
In₂O₃	Coverslip	1.333–1.357	730	Refractive Index: 929 nm/RIU	[40]
ZnO	400 μm U-shaped MMF	1.33–1.42	400	Refractive Index: 220 nm/RIU	[42]
ZnO + ZnO NRs	400 μm MMF	1.33–1.44	390	Refractive Index: 1160 nm/RIU	[8]
ZnO–MoS₂	600 μm MMF	N/A	380	Urinary p-cresol: 11.86 nm/μM LOD: 28 nM	[44]
ZnO + ZnO–PPY	600 μm MMF	N/A	400	Cortisol: 12.86 nm/log (g/mL) LOD: 25.9 fg/mL	[43]
ZnO + ZnO nanorods	600 μm MMF	N/A	350	Sulfide gas: 4.14 nm/ppm	[11]
ZnO + ZnO NPs	600 μm MMF	N/A	370	Sulfide gas:1.49 nm/ppm	[41]
AZO	200 μm MMF	1.3334–1.4471	1200	Refractive Index: 1153.6 nm/RIU	[46]
AZO	SMS	1.365–1.405	1530	Refractive Index: 1214.7 nm/RIU	[47]
IGZO	D-shaped	1.39–1.42	1150	Refractive Index: 12,929 nm/RIU	[48]
TiO₂–PSS	200 μm MMF	1.32–1.43	1100	Refractive Index: 2872.73 nm/RIU	[49]
TiO₂–PSS	600 μm MMF	1.33–1.38	650	Refractive Index: 6754 nm/RIU	[50]
TiO₂	D-shaped	1.333–1.398	1300	Refractive Index: 4122 nm/RIU	[51]
TMPyP–TiO₂	Tapered SMF	N/A	850	Ammonia LOD: 0.16 ppm	[52]
PAH–PAA	200 μm MMF	N/A	610	pH (3–6): 36.67 nm/pH	[55]
PAH–PAA	D-shaped	N/A	1397	pH (4–5): 69 nm/pH	[12]
PAH–PAA–AuNP	200 μm MMF	N/A	750	pH (4–6): 67.35 nm/pH	[56]
PAH–PAA	200 μm MMF	N/A	700	Relative Humidity: 0.51 nm/%RH	[9]
PAH–GNR@PSS	200 μm MMF	N/A	850	Relative Humidity: 11.2 nm/%RH	[58]
PAH–PAA–Ag NPs	200 μm MMF	N/A	750	Relative Humidity: 0.943 nm/%RH	[57]
Graphene Oxide (GO)	200 μm MMF	1.39–1.42	550	Refractive Index: 12,460 nm/RIU	[59]
CuO	Coverslip	1.33–1.37	750	Refractive Index: 1537 nm/RIU	[25]
ZrO₂	400 μm MMF	1.41–1.43	700	Refractive Index: 880 nm/RIU	[10]
Si_xN_y + Ta₂O₅	400 μm MMF	1.33–1.35	770	Refractive Index: 1077 nm/RIU	[10]