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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Eagle-Eye Inspired Meta-Device for Phase Imaging.

Junxiao Zhou^1,2, Fanglin Tian¹, Jie Hu¹

¹Department of Electrical and Computer Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.

Advanced Materials (Deerfield Beach, Fla.)

|May 30, 2024

Summary

Researchers developed an eagle-eye inspired meta-device for bifocal phase imaging. This compact device captures underfocused and overfocused images simultaneously, enabling quantitative phase information extraction for dynamic cellular processes.

Keywords:

metalens meta‐devices quantitative phase imaging

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Area of Science:

Optics and Photonics
Biomedical Imaging
Metamaterials

Background:

Dual-focus vision in eagles inspires novel optical systems.
Quantitative phase imaging (QPI) is crucial for analyzing transparent biological samples.
Existing QPI methods can be complex and lack dynamic imaging capabilities.

Purpose of the Study:

To introduce a novel bifocal meta-device inspired by eagle vision.
To enable simultaneous capture of underfocused and overfocused images for QPI.
To demonstrate the device's utility in dynamic biological imaging scenarios.

Main Methods:

Development of a bifocal meta-device with a polarized camera.
Utilizing the transport of intensity equation for phase retrieval.
Experimental validation using artificial objects and live cells.

Main Results:

Successful simultaneous acquisition of dual-polarized images with different focal planes.
Effective extraction of quantitative phase information from static and dynamic samples.
Demonstrated application in imaging laser-induced ablation in kidney cells.

Conclusions:

The eagle-eye inspired meta-device for phase imaging (EIMPI) offers a simple and compact solution for QPI.
The device is suitable for dynamic imaging at the cellular level.
Potential applications include endoscopy and augmented reality headsets requiring compact optical systems.