Linear diattenuation imaging of biological samples with digital lensless holographic microscopy

A digital lensless holographic microscope (DLHM) sensitive to the linear diattenuation produced by biological samples is reported. The insertion of a linear polarization-states generator and a linear polarization-states analyzer in a typical DLHM setup allows the proper linear diattenuation imaging...

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Bibliographic Details
Published inApplied optics. Optical technology and biomedical optics Vol. 61; no. 5; p. B77
Main Authors Lopera, Maria J, Trujillo, Carlos
Format Journal Article
LanguageEnglish
Published United States 10.02.2022
Subjects
Cost-Benefit Analysis
Holography - methods
Microscopy - methods
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Summary:A digital lensless holographic microscope (DLHM) sensitive to the linear diattenuation produced by biological samples is reported. The insertion of a linear polarization-states generator and a linear polarization-states analyzer in a typical DLHM setup allows the proper linear diattenuation imaging of microscopic samples. The proposal has been validated for simulated and experimental biological samples containing calcium oxalate crystals extracted from agave leaves and potato starch grains. The performance of the proposed method is similar to that of a traditional polarimetric microscope to obtain linear diattenuation images of microscopic samples but with the advantages of DLHM, such as numerical refocusing, cost effectiveness, and the possibility of field-portable implementation.
ISSN:2155-3165
DOI:10.1364/AO.440376