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Beyond Born-Rytov limit for super-resolution optical diffraction tomography.

JooWon Lim, Abdul Wahab, GwangSik Park

|December 10, 2017

Summary

This summary is machine-generated.

Optical diffraction tomography (ODT) can achieve higher image quality by leveraging multiple scattering and high contrast. This novel approach overcomes limitations of traditional methods, revealing previously unobservable structures and resolving missing cone issues in refractive index tomograms.

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Area of Science:

Biophotonics
Optical Imaging
Tomography

Background:

Optical diffraction tomography (ODT) typically relies on approximations (Born, Rytov) that are invalidated by strong scattering or multiple scattering events.
These limitations hinder ODT's application, particularly for complex biological samples where scattering is inherent.
Severe distortions in refractive index (RI) tomograms arise from multiple scattering and high material contrast in conventional ODT.

Purpose of the Study:

To demonstrate that multiple scattering and high material contrast can significantly enhance ODT image quality.
To showcase the potential of handling these scattering effects to improve ODT reconstructions.
To overcome the limitations imposed by strong scattering in ODT applications.

Main Methods:

Development of an approach to aptly handle multiple scattering within the ODT framework.
Utilizing the effects of multiple scattering inside a sample to improve tomogram reconstruction.
Experimental verification using various phantom materials and biological cells.

Main Results:

Demonstrated significant improvement in ODT image quality by incorporating multiple scattering effects.
Revealed fine structures within samples that were previously unobservable with conventional ODT methods.
Successfully resolved the long-standing issue of missing cones in ODT reconstructions.

Conclusions:

Multiple scattering and high material contrast, when properly managed, are beneficial for ODT.
This study presents a novel method to enhance ODT imaging, enabling visualization of previously hidden details.
The findings open new avenues for high-resolution imaging of scattering biological samples using ODT.