Junchang Li, Runqiu Luo, Zujie Peng, Qinghe Song, Jinbin Gui, Haiting Xia. Physical Significance and Experimental Proof of Transfer Function in Coherent Optical Imaging Systems[J]. Acta Optica Sinica, 2021, 41(12): 1207001
- Acta Optica Sinica
- Vol. 41, Issue 12, 1207001 (2021)
Fig. 1. Limited diffraction imaging experiment
Fig. 2. Experimental measurement and theoretical simulation results of intensity image (image plane size is 5.3 mm×5.3 mm). (a1) Experimental measurement without the aperture; (b1) experimental measurement with the aperture; (a2)(b2) simulation result of Eq.(2); (a3)(b3) simulation result of Eq.(3)
Fig. 3. Comparison of physical meanings of two transfer functions (width of images is 1024/5.3 mm-1). (a) Spatial filter with ideal image Fresnel diffraction; (b) low-pass filter with ideal image frequency spectrum
Fig. 4. Experiment system of digital holographic microscopy
Fig. 5. Amplitude distribution and phase distribution of simulated object field. (a) Amplitude distribution; (b) phase distribution
Fig. 6. Theoretical simulation and experimental measurement results of off-axis digital hologram (8.32 mm×8.32 mm). (a) Simulated hologram; (b) experimental hologram
Fig. 7. Theoretical simulation and experimental measurement results of frequency spectrum of digital holograms (1600/8.32 mm-1×1600/8.32 mm-1). (a) Frequency spectrum of simulated hologram; (b) frequency spectrum of experimental hologram
Fig. 8. Theoretical simulation and experimental measurement results of the reconstructed amplitude distribution (8.32 mm×8.32 mm). (a) Simulation result; (b) experimental result
Fig. 9. Theoretical simulation and experimental measurement results of the reconstructed phase distribution (8.32 mm×8.32 mm). (a) Simulation result; (b) experimental result
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