Reflection in-line and off-axis hybrid digital holography

Wang, Feng‐Peng; Wang, Dayong; Cao, Jianliang; Wang, Liping; Yuan, Shuai; Wang, Xingquan; Fenghui, Peng; Tong, Zhifeng

doi:10.1016/j.optcom.2019.124909

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…Where r(x, y) represents the amplitude of the reference light wave and (x, y)  represents the phase of the reference spatial position (x, y). The third item represents the interference information after the object light wave is cosine modulated by the reference light, in which the intensity and phase information of the object are recorded [1][2][3][4][5] .…”

Section: Wavefront Recordingmentioning

confidence: 99%

Experimental Study on Optical Transfer Function through MATLAB Software Simulation

li¹,

Zhang²,

zhang³

et al. 2023

Preprint

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In this paper, we first analyze the two-step imaging process in optical holography, namely, wavefront recording and wavefront reconstruction. According to the relationship of the four diffraction components in the spatial spectrum of the off-axis digital holography diffraction process, the minimum angle is derived between the object light and the reference light of the off-axis digital holography. According to the sampling theorem, the maximum angle is derived between the object light and the reference light in off-axis digital holography. The mathematical derivation of holography algorithm is introduced based on these foundations. When off-axis digital holography is recorded and reproduced, CMOS is used instead of the traditional holographic dry plate for receiving the hologram, and which is saved as a digital signal, finally, the object image is reproduced by MATLAB simulation. The current Fresnel approximation reconstruction algorithm is analyzed and verified by simulation.

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