Abstract

The 3D characterization of inclusions in a host droplet is of great interest in an academic sense and has wide industrial applications. In the framework of the generalized Huygens–Fresnel integral using a tensor ABCD matrix, a model is proposed to describe inline holography of inclusions inside a host droplet with misalignment caused by a tilt incidence of a laser beam. This model takes droplet morphology, inclusion position, as well as refractive index difference between a droplet and the surrounding medium into account and can be reduced to aligned inclusion holography. Typical behaviors of inclusion holography in both recorded holograms and reconstructed inclusion images are analyzed, including typical fringe features of hyperbola, single and dual systems of ellipse, and reconstructed elliptical images. This work extends inline particle holography to deal with misalignment and thus expands its applications in inclusion characterization in a host droplet.

© 2017 Optical Society of America

Characterizations of transparent particle holography in near-field using Debye series

Yingchun Wu, Xuecheng Wu, Longchao Yao, Marc Brunel, Sébastien Coëtmellec, Renxian Li, Denis Lebrun, Hao Zhou, Gérard Gréhan, and Kefa Cen
Appl. Opt. 55(3) A60-A70 (2016)

Direct measurement of particle size and 3D velocity of a gas–solid pipe flow with digital holographic particle tracking velocimetry

Yingchun Wu, Xuecheng Wu, Longchao Yao, Gérard Gréhan, and Kefa Cen
Appl. Opt. 54(9) 2514-2523 (2015)

Wavelet-based depth-of-field extension, accurate autofocusing, and particle pairing for digital inline particle holography

Wu Yingchun, Wu Xuecheng, Yang Jing, Wang Zhihua, Gao Xiang, Zhou Binwu, Chen Linghong, Qiu Kunzan, Gérard Gréhan, and Cen Kefa
Appl. Opt. 53(4) 556-564 (2014)

Extended ABCD matrix formalism for the description of femtosecond diffraction patterns; application to femtosecond digital in-line holography with anamorphic optical systems

Marc Brunel, Huanhuan Shen, Sebastien Coetmellec, and Denis Lebrun
Appl. Opt. 51(8) 1137-1148 (2012)

Three-dimensional characterization of debris clouds under hypervelocity impact with pulsed digital inline holography

Yonggang Zhou, Zhiliang Xue, Yingchun Wu, Aimin Xie, and Xuecheng Wu
Appl. Opt. 57(21) 6145-6152 (2018)