Fig. 1. Michelson interferometer and optical low coherence interference. (a) Michelson interferometer; (b) cosine function simple harmonic oscillation of interference signal; (c)(d) interferometric fringe; (e) short coherence length light

Fig. 2. Reconstruction of 3D OCT image for mouse full eye in vivo

Fig. 3. Schematic of Fourier domain low coherence interference. (a) spectral domain detection; (b) swept source detection; (c) signal reconstruction from frequency domain to spatial domain

Fig. 4. Lateral resolution of OCT with different numerical apertures

Fig. 5. Sensitivity falling-off versus depth

Fig. 6. 3D imaging of the whole anterior segment of the human eye. (a) 3D rendering of the full anterior segment (covering range of 12 mm×18 mm×18 mm); (b) typical cross-sectional image; (c) sub-regions of the corneo-scleral limbus, cornea, anterior and posterior parts of the crystalline lens

Fig. 7. OCT images of chick embryonic heart. (a) Longitudinal section; (b) cross section; (c) M-mode structural image along the vertical dashed line in (b) which the boundary of myocardial wall is indicated by the solid curves; (d) M-mode structural image superimposed with radial strain rate of the myocardial wall and Doppler velocity of blood flow (The vertical scale bar is 200 μm, and the horizontal bar is 0.1 s)

Fig. 8. 3D label-free OCTA imaging of the rat cortex vasculature[15]