Fig. 1. Principle diagram of FINCH with structured light illumination

Fig. 2. Experimental setup of FINCH with structured light illumination

Fig. 3. Relationship between OTF and defocus distance under different normalized spatial frequencies

Fig. 4. Results of tomographic reconstruction based on FINCH system under structured light illumination with different normalized spatial frequencies. (a) υ=0; (b) υ=0.2; (c) υ=0.5; (d) υ=0.9

Fig. 5. Results of tomographic imaging under different axial distances. (a) Δz=1 mm; (b) Δz=2 mm; (c) Δz=3 mm

Fig. 6. Experimental results of tomographic imaging and reconstruction based on FINCH system under structured light illumination with different normalized spatial frequencies. (a) υ=0.24; (b) υ=0.27; (c) υ=0.33; (d) υ=0.42; (e) υ=0.54

Fig. 7. Relationship between signal-to-noise ratio and normalized spatial frequency of structured light

Fig. 8. Experimental results of reconstructed images based on FINCH system under different axial distances

Fig. 9. Experimental results of tomographic imaging under different axial distances

Fig. 10. Signal-to-noise ratio of reconstructed images in Fig. 9