Qin W, Yang X, Li Y, Peng X, Yao H, Qu X, Gao BZ. Two-step phase-shifting fluorescence incoherent holographic microscopy.
J Biomed Opt 2014;
19:060503. [PMID:
24972355 PMCID:
PMC4073681 DOI:
10.1117/1.jbo.19.6.060503]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 06/04/2014] [Accepted: 06/05/2014] [Indexed: 06/01/2023]
Abstract
Fluorescence holographic microscope (FINCHSCOPE) is a motionless fluorescence holographic imaging technique based on Fresnel incoherent correlation holography (FINCH) that shows promise in reconstructing three-dimensional fluorescence images of biological specimens with three holograms. We report a developing two-step phase-shifting method that reduces the required number of holograms from three to two. Using this method, we resolved microscopic fluorescent beads that were three-dimensionally distributed at different depths with two interferograms captured by a CCD camera. The method enables the FINCHSCOPE to work in conjunction with the frame-straddling technique and significantly enhance imaging speed.
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