Table 2.

Comparison of earlier work with the proposed absorber design for visible regime.

References	Device configuration	Bandwidth range (nm)		Absorption (%)	Dimensions (nm)	Used materials	Polarization independent and angle (A > 70%)
		From	To
41	Multilayer	475	785	> 80	160 × 160 × 400	Au, Si	Yes, θ ≤ 65°
42	Monolayer	400	650	> 90	410 × 205 × 380	Ni	Yes, θ ≤ 60°
43	Multilayer	400	700	> 80	800 × 800 × 700	SiO2, Ni	Yes, θ ≤ 70°
44	Two layers	262	709	> 90	240 × 240 × 170	Au, Si	Yes, θ ≤ 50°
27	MIM tri-layer	450	600	> 90	400 × 400 × 130	Al, SiO2	–
28	MIM tri-layer	389	697	> 90	1000 × 1000 × 225	W, SiO2	Yes, θ ≤ 60°
29	MIM tri-layer	400	750	> 80	200 × 200 × 65	W, SiO2	Yes, θ ≤ 40°
9	MIM tri-layer	400	750	> 80	200 × 200 × 135	W, SiO2	Yes, θ ≤ 50°
45	MIM tri-layer	380	765	> 90	380 × 380 × 180	W, SiO2	Yes, θ ≤ 70°
Our design	MIM tri-layer	400	800	> 94	300 × 300 × 190	Mn, SiO2	Yes, θ ≤ 80°