Three-dimensional imaging in reflection phase microscopy with minimal axial scanning.

Area of Science:

• Optical imaging
• Microscopy techniques
• Computational imaging

Background:

• Reflection phase microscopy offers optical sectioning for 3D imaging.
• Conventional 3D reconstruction requires dense mechanical scanning, limiting speed and stability.
• Existing methods face challenges in practical applications due to acquisition time and sample disturbance.

Purpose of the Study:

• To develop a faster and more stable 3D imaging method using reflection phase microscopy.
• To overcome the limitations of conventional mechanical scanning in 3D reconstruction.
• To enhance the practical applicability of reflection phase microscopy in scientific research.

Main Methods:

• Utilized reflection phase microscopy to capture 2D images at widely spaced depth intervals.
• Employed numerical propagation to reconstruct the 3D structure by filling information gaps.
• Reduced the number of axial scans significantly compared to traditional methods.

Main Results:

• Successfully constructed complete 3D maps of objects with a substantially reduced number of axial scans.
• Demonstrated enhanced imaging speed in experimental results.
• Maintained the accuracy of the reconstructed 3D structures.

Conclusions:

• The proposed method significantly improves imaging speed and sample stability for 3D reconstruction.
• Numerical propagation effectively bridges the gap between sparsely acquired 2D images.
• This technique broadens the potential applications of reflection phase microscopy in bioimaging and material science.