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Implementation of a Reference Interferometer for Nanodetection
Published on: April 26, 2014
Implementation of an adaptive-optics assisted isoSTED nanoscope
Yang Li1, Dong-Ryoung Lee2, Edward S Allgeyer3
1Department of Cell Biology, Yale School of Medicine, New Haven, CT, USA.
Nature Protocols
|May 8, 2026
Summary
This study details the construction and alignment of an isoSTED nanoscope, enabling high-resolution 3D imaging. Researchers can achieve isotropic sub-50-nm resolution in thick biological samples using this advanced stimulated emission depletion nanoscopy technique.
Area of Science:
- Microscopy and Imaging Technologies
- Optical Physics
- Biotechnology
Background:
- High 3D resolution in stimulated emission depletion (STED) nanoscopy necessitates a 4Pi architecture.
- Existing methods require complex setups for advanced imaging capabilities.
Purpose of the Study:
- To provide a comprehensive protocol for building and aligning a 4Pi-STED nanoscope, termed 'isoSTED nanoscope'.
- To guide researchers in achieving isotropic sub-50-nm resolution in 3D biological imaging.
Main Methods:
- Step-by-step guidance on assembling optomechanical components.
- Detailed instructions for configuring electronic and control devices.
- Procedures for optical beam path alignment and performance assessment.
Main Results:
- A detailed roadmap for constructing an isoSTED nanoscope with adaptive optics.
- Successful calibration enables isotropic sub-50-nm resolution in 3D.
- Imaging of thick samples up to 35 µm in depth is achievable.
Conclusions:
- The isoSTED nanoscope protocol facilitates the creation of advanced microscopy tools.
- This technique allows for unprecedented resolution in 3D biological imaging.
- The developed protocol empowers researchers with expertise in optical instrumentation.
