[1] Zhang J L, Chen Q, Zhang X Y et al. Lens-free on-chip microscopy: theory, advances, and applications[J]. Infrared and Laser Engineering, 48, 0603009(2019).

[2] Fan J P, Zhang D S, Lü X X et al. Phase reconstruction and compensation of biological cell with digital holographic microscopy[J]. Chinese Journal of Lasers, 41, 0209019(2014).

[3] Zalevsky Z, Mendlovic D, Dorsch R G. Gerchberg-Saxton algorithm applied in the fractional Fourier or the Fresnel domain[J]. Optics Letters, 21, 842-844(1996).

[4] Yang G Z, Dong B Z, Gu B Y et al. Gerchberg-Saxton and Yang-Gu algorithms for phase retrieval in a nonunitary transform system: a comparison[J]. Applied Optics, 33, 209-218(1994). http://europepmc.org/abstract/MED/20862010

[5] Polo A, Kutchoukov V, Bociort F et al. Determination of wavefront structure for a Hartmann wavefront sensor using a phase-retrieval method[J]. Optics Express, 20, 7822-7832(2012). http://www.opticsinfobase.org/abstract.cfm?URI=oe-20-7-7822

[6] Li C W, Li B M, Zhang S J. Phase retrieval using a modified Shack-Hartmann wavefront sensor with defocus[J]. Applied Optics, 53, 618-624(2014). http://www.opticsinfobase.org/ao/abstract.cfm?uri=ao-53-4-618

[7] Li S, Zhang S J, Li C W. Understanding optical systems through theory and case studies[M]. New York: SPIE(2017).

[8] Yazdani R, Fallah H. Wavefront sensing for a Shack-Hartmann sensor using phase retrieval based on a sequence of intensity patterns[J]. Applied Optics, 56, 1358-1364(2017). http://adsabs.harvard.edu/abs/2017ApOpt..56.1358Y

[9] Feng F, Li C W, Zhang S J. Wavefront reconstruction by a defocused Shack-Hartmann sensor based on moment of spot[J]. Acta Optica Sinica, 38, 0628001(2018).

[10] Fienup J R. Phase retrieval algorithms: a comparison[J]. Applied Optics, 21, 2758-2769(1982).

[11] Noom D W E, Eikema K S E, Witte S. Lensless phase contrast microscopy based on multiwavelength Fresnel diffraction[J]. Optics Letters, 39, 193-196(2014). http://www.opticsinfobase.org/abstract.cfm?uri=ol-39-2-193