Multi-modal imaging using a cascaded microscope design.

Area of Science:

• Optical Engineering
• Biomedical Imaging
• Microscopy

Background:

• Existing cascaded imaging systems face limitations in accommodating planar camera arrays and acquiring multi-modal data.
• There is a need for advanced imaging techniques capable of large-area, high-resolution, and multi-channel video acquisition.

Purpose of the Study:

• To introduce a novel multi-modal fiber array snapshot technique (M-FAST).
• To demonstrate M-FAST's capability for simultaneous acquisition of dual-channel fluorescence and differential phase contrast images.

Main Methods:

• Utilized an array of 96 compact cameras positioned behind a primary objective lens and a fiber bundle array.
• Implemented a novel optical arrangement to support planar camera arrays.
• Developed a system for multi-modal image data acquisition.

Main Results:

• Achieved large-area imaging over a 6.59 mm × 9.74 mm field-of-view.
• Acquired snapshot dual-channel fluorescence images and differential phase contrast measurements.
• Demonstrated a center full-pitch resolution of 2.2 μm.

Conclusions:

• M-FAST offers a scalable solution for multi-modal imaging.
• The technique overcomes limitations of prior cascaded imaging systems.
• M-FAST enables simultaneous acquisition of diverse image modalities with high resolution and large field-of-view.