Super-resolution re-scan second harmonic generation microscopy

Area of Science:

• Biomedical optics
• Microscopy
• Materials science

Background:

• Second harmonic generation (SHG) microscopy enables label-free 3D tissue and material visualization, particularly for collagen.
• Super-resolution advancements in fluorescence microscopy have not been matched in SHG imaging.

Purpose of the Study:

• To demonstrate super-resolved re-scan SHG microscopy for enhanced collagen imaging.
• To introduce super-resolved re-scan two-photon excited fluorescence microscopy.

Main Methods:

• Implementation of super-resolved re-scan SHG microscopy.
• Quantitative and qualitative analysis of resolution improvements on collagenous tissues.
• Development of super-resolved re-scan two-photon excited fluorescence microscopy.

Main Results:

• Super-resolved re-scan SHG microscopy provides a resolution advantage beyond the diffraction limit.
• Demonstrated effectiveness on collagenous tissues.
• Successfully introduced a novel super-resolution imaging modality.

Conclusions:

• Super-resolved re-scan SHG microscopy significantly enhances imaging resolution for biological and material samples.
• The developed techniques offer new possibilities for high-resolution imaging in various scientific fields.