Figure 3 | Scientific Reports

Figure 3

From: Rapid imaging and product screening with low-cost line-field Fourier domain optical coherence tomography

Figure 3

Performance metrics: axial resolution, sensitivity roll-off and lateral resolution. (a) A raw interferogram extracted from the acquired spectra of a fixed reflection. (b) A Gaussian fit of the zero-padded A-scan, showing an axial resolution of 8.3 μm in air. (c) Sensitivity roll-off curve showing an axial range up to 2-mm OPD. (d) Lateral resolution measurement using a USAF 1951 (upper) resolution target. Intensity profile (bottom) plotted from the red line position in group 6 demonstrates the smallest resolvable pattern, which is corresponding to element 4 of group 6.

Back to article page