A new phase error compensation method in digital holographic microscopy

Zhaomin Wang; Weijuan Qu; Yongfu Wen; Fang Yang; Anand Asundi

doi:10.1117/12.2076855

4 March 2015 A new phase error compensation method in digital holographic microscopy

Zhaomin Wang, Weijuan Qu, Yongfu Wen, Fang Yang, Anand Asundi

Proceedings Volume 9302, International Conference on Experimental Mechanics 2014; 93023M (2015) https://doi.org/10.1117/12.2076855
Event: International Conference on Experimental Mechanics 2014, 2014, Singapore, Singapore

Abstract

In this paper we present a new method to compensate for phase aberrations and image distortion with recording single digital hologram in digital holographic microscopy. In our method, tilt is removed from the abberrated phase map first. Then an area of interest (AOI) is generated by flood filled algorithm. By fitting AOI with discrete orthogonal Zernike polynomials, error phase map in the form of a series of Zernike polynomials is obtained. Final result can be calculated by subtracting the error phase map from the abberrated phase map. Through applying our method in microlens testing, phase aberrations and image distortion introduced by microscope objective are well suppressed.

Citation Download Citation

Zhaomin Wang, Weijuan Qu, Yongfu Wen, Fang Yang, and Anand Asundi "A new phase error compensation method in digital holographic microscopy", Proc. SPIE 9302, International Conference on Experimental Mechanics 2014, 93023M (4 March 2015); https://doi.org/10.1117/12.2076855

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