L 0.61[m] "Width of the diffuser" Lw 0.09[m] "Width of one well" Li 0.01[m] "Width in between wells" H 0.3[m] "Height of the diffuser" d1 0.15[m] "Depth of well 1" d2 0.10[m] "Depth of well 2" d3 0.29[m] "Depth of well 3" d4 0.20[m] "Depth of well 4" d5 0.24[m] "Depth of well 5" d6 0.05[m] "Depth of well 6" r_air 1[m] "Radius of the air domain (for single diffuser)" r0 10[m] "Evaluation distance" Hair 1[m] "Height of the air domain" Hpml 0.2[m] "Thickness of the PML"