Figure 6: OCT contrast assessment.
From: Quantifying the influence of Bessel beams on image quality in optical coherence tomography
(a) Experimental OCT B-scans of the contrast phantom acquired with Gaussian and Bessel beams propagating through the overlayers (Overlayer 1 not shown). (b) Close-up (650 × 250 μm) on selected pillar features, boxed by a yellow line in (a). (c) Transverse line across selected pillars in the beam focal region. Lines are averages over depth within the areas bounded by the respective coloured boxes. Quantitative contrast in Table 1 is evaluated using the 80 μm × 40 μm orange box around the pillar edge.
