High Resolution through Graded-Index Microoptics

Figure 2

Light intensity profile near five Gaussian light sources of width 𝜆/200, spaced 𝜆/50 apart, at different distances: (a) 𝑧=5 nm, (b) 𝑧=30 nm for 𝜆=1550 nm (intensity is plotted in relative units).

(a)

(b)