fig9

Figure 9. The OTFs of second-order differentiator at λ = 1250nm considering experimental deviations: (A) L = 339 nm, W = 152 nm, P = 610 nm; (B) L = 339 nm, W = 152 nm, P = 612 nm; (C) L = 339 nm, W = 154 nm, P = 610 nm; (D) L = 339 nm, W = 154 nm, P = 612 nm; (E) L = 341 nm, W = 152 nm, P = 610 nm; (F) L = 341 nm, W = 152 nm, P = 612 nm; (G) L = 341 nm, W = 154 nm, P = 610 nm; and (H) L = 341 nm, W = 154 nm, P = 612 nm.