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Updated: Jun 16, 2025
08:53
Single Plane Illumination Module and Micro-capillary Approach for a Wide-field Microscope
Published on: August 15, 2014
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Metamaterial-Assisted Illumination Nanoscopy with Exceptional Axial Resolution
Yeon Ui Lee1,2, Shilong Li1,3, Junxiang Zhao1
1Department of Electrical and Computer Engineering, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|August 20, 2024
Summary
Optical metamaterials enable super-resolution microscopy. This study demonstrates nanometer-scale axial localization accuracy in metamaterial-assisted illumination nanoscopies (MAINs), achieving 5 nm axial resolution for 3D cellular imaging.
Area of Science:
- Optics
- Materials Science
- Nanotechnology
Background:
- Optical metamaterials offer novel applications in super-resolution microscopy.
- Metamaterial-assisted illumination nanoscopies (MAINs) have improved lateral resolution.
- Axial localization accuracy in MAINs is an underexplored area.
Purpose of the Study:
- To demonstrate nanometer-scale axial localization accuracy in MAINs.
- To explore the use of organic hyperbolic metamaterial (OHM) substrates for enhanced axial resolution.
- To achieve 3D imaging of biological samples with high resolution.
Main Methods:
- Utilized distance-dependent photobleaching dynamics of fluorophores on an OHM substrate.
- Employed a wide-field single-objective microscope setup.
- Developed a MAIN technique for precise axial localization.
Main Results:
- Achieved nanometer-scale axial localization accuracy (≈5 nm).
- Realized 3D imaging with ≈40 nm lateral and ≈5 nm axial resolution.
- Demonstrated the capability to resolve 3D morphology of nanoscopic cellular structures.
Conclusions:
- MAINs combined with OHM substrates significantly enhance axial localization accuracy.
- This simplified experimental setup enables high-resolution 3D imaging of biological samples.
- The technique offers a promising approach for visualizing nanoscale cellular structures in three dimensions.
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