Single-shot polarization-imaging digital holography based on simultaneous phase-shifting interferometry

Tahara, Tatsuki; Awatsuji, Yasuhiro; Shimozato, Yuki; Kakue, Takashi; Nishio, K.; Ura, Shogo; Kubota, Toshihiro; Matoba, Osamu

doi:10.1364/ol.36.003254

Cited by 39 publications

(25 citation statements)

References 16 publications

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“…Simultaneous extraction of the polarization information has been performed either through spatial modulation, 88,89 or with microarrays. 90 More complicated implementations can even allow the extraction of all Stokes parameters instead of two orthogonal polarization states. 91 In the case of OCT, the coherent tomography principle has been combined with dark-¯eld illumination to enhance the image contrast of cell preparations.…”

Section: Linear Multimodal Implementationsmentioning

confidence: 99%

Multimodal label-free microscopy

Pavillon

Fujita

Smith

2014

J. Innov. Opt. Health Sci.

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This paper reviews the di®erent multimodal applications based on a large extent of label-free imaging modalities, ranging from linear to nonlinear optics, while also including spectroscopic measurements. We put speci¯c emphasis on multimodal measurements going across the usual boundaries between imaging modalities, whereas most multimodal platforms combine techniques based on similar light interactions or similar hardware implementations. In this review, we limit the scope to focus on applications for biology such as live cells or tissues, since by their nature of being alive or fragile, we are often not free to take liberties with the image acquisition times and are forced to gather the maximum amount of information possible at one time. For such samples, imaging by a given label-free method usually presents a challenge in obtaining su±cient optical signal or is limited in terms of the types of observable targets. Multimodal imaging is then particularly attractive for these samples in order to maximize the amount of measured information. While multimodal imaging is always useful in the sense of acquiring additional information from additional modes, at times it is possible to attain information that could not be discovered using any single mode alone, which is the essence of the progress that is possible using a multimodal approach.

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Section: Linear Multimodal Implementationsmentioning

confidence: 99%

Multimodal label-free microscopy

Pavillon

Fujita

Smith

2014

J. Innov. Opt. Health Sci.

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“…These techniques require either four CCD camera with complex experimental setup or single CCD camera having a micro-polarizer array to record four phase shifted interferograms simultaneously. This either increases cost of the system significantly or leads to inefficient utilization of CCD chip as each four phase shifted interferogram uses only one fourth pixels of the CCD chip [27,28]. All these aforementioned issues related to PSI compel us to think about a straightforward and cost effective method which can avoid the use of expensive phase shifting devices, large number of the optical components and most importantly alleviate the problem of external air turbulence and vibrations.…”

Section: Introductionmentioning

confidence: 99%

Sub-nanometer height sensitivity by phase shifting interference microscopy under environmental fluctuations

et al. 2020

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Phase shifting interferometric (PSI) techniques are among the most sensitive phase measurement methods. Owing to its high sensitivity, any minute phase change caused due to environmental instability results into, inaccurate phase measurement. Consequently, a well calibrated piezo electric transducer (PZT) and highly-stable environment is mandatory for measuring accurate phase map using PSI implementation. Here, we present a new method of recording temporal phase shifted interferograms and a numerical algorithm, which can retrieve phase maps of the samples with negligible errors under the ambient environmental fluctuations. The method is implemented by recording a video of continuous temporally phase shifted interferograms and phase shifts were calculated between all the data frames using newly developed algorithm with a high accuracy ≤ 5.5 × 10 -4 π rad. To demonstrate the robustness of the proposed method, a manual translation of the stage was employed to introduce continuous temporal phase shift between data frames. The developed algorithm is first verified by performing quantitative phase imaging of optical waveguide and red blood cells using uncalibrated PZT under the influence of vibrations/air turbulence and compared with the well calibrated PZT results. Furthermore, we demonstrated the potential of the proposed approach by acquiring the quantitative phase imaging of an optical waveguide with a rib height of only 2 nm. By using 12-bit CMOS camera the height of shallow rib waveguide is measured with a height sensitivity of 4 Å without using PZT and in presence of environmental fluctuations.

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“…Parallel phase-shifting digital holography [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45] is one of the fastest digital holographies. The technique can attain both high precision and instantaneous 3D measurement of a moving object with single-shot exposure and has been increasingly investigated in recent years.…”

Section: Introductionmentioning

confidence: 99%

Parallel phase-shifting digital holography using spectral estimation technique

et al. 2014

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We propose a parallel phase-shifting digital holography using a spectral estimation technique, which enables the instantaneous acquisition of spectral information and three-dimensional (3D) information of a moving object. In this technique, an interference fringe image that contains six holograms with two phase shifts for three laser lines, such as red, green, and blue, is recorded by a space-division multiplexing method with single-shot exposure. The 3D monochrome images of these three laser lines are numerically reconstructed by a computer and used to estimate the spectral reflectance distribution of object using a spectral estimation technique. Preliminary experiments demonstrate the validity of the proposed technique.

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Single-shot polarization-imaging digital holography based on simultaneous phase-shifting interferometry

Cited by 39 publications

References 16 publications

Multimodal label-free microscopy

Multimodal label-free microscopy

Sub-nanometer height sensitivity by phase shifting interference microscopy under environmental fluctuations

Parallel phase-shifting digital holography using spectral estimation technique

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