Review Article

Full-Field and Single-Shot Full-Field Optical Coherence Tomography: A Novel Technique for Biomedical Imaging Applications

Figure 3

Relationship between focus spot size and depth of field for objective lens with high and low numerical aperture. The numerical aperture of an objective is defined as the refractive index of the lens immersion medium times the sine of the half-aperture angle ( ).
435408.fig.003