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. 2023 Dec 6;13:21560. doi: 10.1038/s41598-023-48836-5

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© The Author(s) 2023

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Peak positions of 1D-DPhC with optimum defective layer thickness dd = 200 (nm) when the angle of light incidence (a) θ = 0°, (b) 30°, (c) 50°, and (d) 70° respectively.