Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-dimensional optical diffraction tomographic microscopy with
  optimal frequency combination with partially coherent illuminations   We demonstrate a three-dimensional (3D) optical diffraction tomographic
technique with optimal frequency combination (OFC-ODT) for the 3D quantitative
phase imaging of unlabeled specimens. Three sets of through-focus intensity
images are captured under an annular aperture and two circular apertures with
different coherence parameters. The 3D phase optical transfer functions (POTF)
corresponding to different illumination apertures are combined to obtain an
optimally synthesized frequency response, achieving high-quality, low-noise 3D
reconstructions with imaging resolution up to the incoherent diffraction limit.
Besides, the 3D imaging performance of annular illumination is explored and the
expression of 3D POTF for arbitrary illumination pupils is derived and
analyzed. It is shown that the phase-contrast washout effect in high-NA
circular apertures can be effectively addressed by introducing a complementary
annular aperture, which strongly boosts the phase contrast and improves the
practical imaging resolution. To test the feasibility of the proposed OFC-ODT
technique, the 3D refractive index reconstruction results based on a simulated
3D resolution target and experimental investigations of micro polystyrene bead
and unstained biological samples are presented. Due to its capability of
high-resolution 3D phase imaging as well as the compatibility with widely
available commercial microscope, the OFC-ODT is expected to find versatile
applications in biological and biomedical research.

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The categories of this paper are: dg-ga
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat