Snapshot quantitative phase microscopy with a printed film.

Area of Science:

• Optical Imaging
• Microscopy
• Biophysics

Background:

• Quantitative phase imaging (QPI) is crucial for label-free cell analysis.
• Traditional QPI methods often require complex setups or specialized equipment.
• There is a need for cost-effective and accessible QPI techniques.

Purpose of the Study:

• To develop a low-cost, snapshot quantitative phase imaging (QPI) method.
• To integrate QPI capabilities into conventional microscopes with minimal modification.
• To enable real-time phase imaging of dynamic biological and physical processes.

Main Methods:

• A printed film is added to a conventional microscope setup.
• Sample phase is treated as an optical system aberration.
• An optimization algorithm estimates distortion to recover phase information from a single captured image.

Main Results:

• The method successfully imaged a micro-lens array, IMR90 cells, and dynamic water evaporation.
• Demonstrated capability for real-time phase imaging of dynamic phenomena.
• Achieved quantitative phase information recovery with a simple, low-cost setup.

Conclusions:

• The proposed method offers a cost-effective and simple approach to quantitative phase imaging.
• It extends the functionality of traditional microscopes for dynamic process observation.
• This technique holds potential for broader applications in biological and material science research.