3D imaging through a highly heterogeneous double-composite random medium by common-path phase-shift digital holography

A method is proposed for 3D imaging through a highly heterogeneous double-composite random medium made of a thick mildly inhomogeneous medium followed by a thin strongly scattering layer. To realize the immunity to the heterogeneous random medium, a system of common-path phase-shift digital holograp...

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Veröffentlicht in:Optics letters 2022-03, Vol.47 (5), p.1170-1173
Hauptverfasser: Ohta, Manami, Kodama, Shutaro, Miyamoto, Yoko, Osten, Wolfgang, Takeda, Mitsuo, Watanabe, Eriko
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Sprache:eng
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Zusammenfassung:A method is proposed for 3D imaging through a highly heterogeneous double-composite random medium made of a thick mildly inhomogeneous medium followed by a thin strongly scattering layer. To realize the immunity to the heterogeneous random medium, a system of common-path phase-shift digital holography is designed in such a manner that the wavefront distortion caused by the first inhomogeneous medium is canceled out by the common-path geometry, and the influence of the random phase introduced by the second scattering layer is removed by the intensity-based recording of the digital hologram on the thin scattering layer. The validity of the method was confirmed by experiments.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.451167