Fig. 1. Simulation results of three-layer scatterer. (a) Simulation result obtained by conventional OCT; (b) simulation result obtained by PSD-OCT; (c) gray distribution curves

Fig. 2. Experimental setup of PSD-OCT system

Fig. 3. Schematic diagram of PRPP operation

Fig. 4. Imaging comparison of mirror with different phase modulators. (a) No phase modulator; (b) with PRPP; (c) with diffuser

Fig. 5. Imaging results of PDMS-TiO₂. (a) Correlation superposition imaging results obtained by conventional OCT under different M ; (b) decorrelation superposition imaging results obtained by PSD-OCT under different M

Fig. 6. Data analysis of PDMS-TiO₂ imaging results. (a) Speckle signal-to-noise ratio varying with M; (b) enlarged result of dashed box in Fig. 6 (a); (c) gray distribution curves obtained by conventional OCT under different M; (d) gray distribution curves obtained by PSD-OCT under different M

Fig. 7. Imaging of human nail. (a) Correlation superposition imaging result obtained by conventional OCT; (b) decorrelation superposition imaging result obtained by PSD-OCT

Fig. 8. Imaging of human fingertip. (a) Correlation superposition imaging result obtained by conventional OCT; (b) decorrelation superposition imaging result obtained by PSD-OCT; (c) gray values along depth direction marked by dashed arrows in enlarged view of dashed boxes in Figs. 8 (a) and 8 (b)