Researching | An Optimal Modeling of Bidirectional Reflectance Distribution Function for Coating Metals in 1550 nm

Journals >Laser & Optoelectronics Progress >Volume 59 >Issue 21 >Page 2129001 > Article

Laser & Optoelectronics Progress
Vol. 59, Issue 21, 2129001 (2022)

An Optimal Modeling of Bidirectional Reflectance Distribution Function for Coating Metals in 1550 nm

Meng Wang, Wei Yan, Zhenhua Li^*, Jiancheng Lai^**, Chunyong Wang^***, and Yunjing Ji

Author Affiliations

School of Science, Nanjing University of Science & Technology, Nanjing 210094, Jiangsu, China

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DOI: 10.3788/LOP202259.2129001 Cite this Article Set citation alerts

Meng Wang, Wei Yan, Zhenhua Li, Jiancheng Lai, Chunyong Wang, Yunjing Ji. An Optimal Modeling of Bidirectional Reflectance Distribution Function for Coating Metals in 1550 nm[J]. Laser & Optoelectronics Progress, 2022, 59(21): 2129001 Copy Citation Text

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Geometric relation of BRDF

Fig. 1. Geometric relation of BRDF

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TSM calculation flow chart

Fig. 2. TSM calculation flow chart

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Fig. 3. Experimental sample

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Fig. 4. Schematic of experimental device

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Fig. 5. Experimental device. (a) Detector patr; (b) light source part

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Fig. 6. GA, GSAA, and GTSA minimum value of per generation

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Fig. 7. Comparison of experimental and calculated values of black coated aluminum plate at 30° incidence

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Fig. 8. Comparison between experimental and calculated values of black coated. (a) Incidence is 45°; (b) incidence is 60°

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Fig. 9. Calculated and experimental values of the two samples. (a) Green coated; (b) yellow coated

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Detection angle /（°）	$f_{r}$ /sr^-1	Variance
0	0.08	2.8 $\times$ 10^-4
15	1.20	9.9 $\times$ 10^-4
30	4.04	5.3 $\times$ 10^-4
45	1.56	7.7 $\times$ 10^-4
60	0.14	4.5 $\times$ 10^-4

Table 1. Experimental value of 30° incident angle of black coating

Arithmetic	$σ$	$n$	$k$	$k_{s}$	$k_{d}$	$Δ_{m i n}$ /%	Calculation time in 50 iterations /s	Number of iterations that converge to the minimum
GA	0.1197	1.5437	3.0274	0.6643	0.2061	0.25	0.2907	38
GSAA	0.1164	1.6937	3.8844	0.6108	0.2096	0.17	1.8850	23
GTSA	0.1195	1.6600	3.6509	0.6542	0.1850	0.10	2.6876	15

Table 2. Calculation results of GA, GSAA, and GTSA

Sample	$σ$	$n$	$k$	$k_{s}$	$k_{d}$	$Δ_{m i n}$ /%
Green coated	0.1239	1.6637	3.4927	0.7991	0.1202	0.28
Yellow coated	0.1181	1.7317	4.8388	0.8934	0.1116	0.19

Table 3. Calculation results of green coated and yellow coated

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References (19)

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Meng Wang, Wei Yan, Zhenhua Li, Jiancheng Lai, Chunyong Wang, Yunjing Ji. An Optimal Modeling of Bidirectional Reflectance Distribution Function for Coating Metals in 1550 nm[J]. Laser & Optoelectronics Progress, 2022, 59(21): 2129001

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