High-contrast multifocus microscopy with a single camera and z-splitter prism.

Area of Science:

• Biomedical Imaging
• Optical Microscopy
• Cell Biology

Background:

• 3D volumetric imaging in optical microscopy is crucial but often limited by speed and complexity.
• Existing methods struggle with efficient acquisition of high-resolution 3D biological data.

Purpose of the Study:

• To develop a simplified multifocus imaging strategy for rapid and efficient 3D volumetric imaging.
• To enhance image contrast and enable quasi-optical sectioning in microscopy.
• To create a versatile imaging system applicable to various modalities.

Main Methods:

• Implemented a multifocus imaging strategy using a z-splitter prism to distribute image stacks onto a single camera.
• Developed an extended-volume 3D deconvolution algorithm to suppress out-of-focus fluorescence.
• Configured z-splitter for prioritizing speed or field-of-view.

Main Results:

• Simultaneous recording of 3D image stacks on a single camera.
• Significant improvement in image contrast and reduction of background noise.
• Demonstrated adaptability to fluorescence, phase-contrast, and darkfield imaging.

Conclusions:

• The developed multifocus imaging system offers a simple, versatile, and high-performance solution for 3D biological imaging.
• The technique provides quasi-optical sectioning capabilities, improving image quality.
• This approach is suitable for a broad range of biological and biomedical applications.