Figure 8 | Scientific Reports

Figure 8

From: Quasi-periodic concave microlens array for liquid refractive index sensing fabricated by femtosecond laser assisted with chemical etching

Figure 8

(a) The experimental and simulated total diffraction efficiency spectra of fused silica MLA. The inset is the 3D MLA model in FDTD simulation; Calculated diffraction pattern when environment RI is 1 illuminated by (b) 500 nm and (c) 632 nm light source; Contour plots of the calculated (d) order 00, (e) order 10 and (f) order 11 diffraction efficiency spectra of fused silica MLA for different liquid RI.

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