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Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

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Published on: February 12, 2014

Optical Nonlinearity Enabled Super-Resolved Multiplexing Microscopy.

Lei Ding^1,2, Chaohao Chen^1,3,4, Xuchen Shan⁵

¹Guangdong Engineering and Technology Research Center for Advanced Nanomaterials, School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan, 523808, China.

Advanced Materials (Deerfield Beach, Fla.)

|November 16, 2023

Summary

This summary is machine-generated.

Researchers introduce optical nonlinearity as a new dimension for super-resolved multiplexing microscopy. This method uses unique optical fingerprints from upconversion nanoparticles (UCNPs) for enhanced nanoscale object recognition in biology and medicine.

Keywords:

lanthanide multiplexing nonlinearity super-resolution

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Area of Science:

Nanotechnology
Optical Microscopy
Spectroscopy

Background:

Multiplexing in nanoscopy traditionally relies on limited dimensions like emission intensity, color, lifetime, and polarization.
Nanoscale object recognition is crucial for advancements in biology, medicine, anti-counterfeiting, and microscopic imaging.

Purpose of the Study:

To introduce optical nonlinearity as a novel dimension for super-resolved multiplexing microscopy.
To develop a robust imaging strategy for differentiating nanoparticles based on their unique optical nonlinearities.

Main Methods:

Utilizing energy transitions in doped lanthanide ions within upconversion nanoparticles (UCNPs) to generate distinct optical nonlinearities.
Employing a vortex beam to modulate the imaging point-spread function (PSF) based on optical nonlinearity.
Demonstrating four-channel multiplexing super-resolved imaging by combining emission color and optical nonlinearity.

Main Results:

Achieved a spatial resolution exceeding 150 nm (1/6.5λ).
Successfully differentiated UCNPs with distinct optical nonlinearities by analyzing PSF variations.
Enabled multiplexed imaging using two orthogonal dimensions: emission color and optical nonlinearity.

Conclusions:

Optical nonlinearity offers a new, orthogonal dimension for multiplexing in super-resolved microscopy.
This approach significantly enhances nanoscale object recognition capabilities.
The technique holds substantial potential for applications in bioimaging, anti-counterfeiting, and high-density data storage.