A dual laser flow sorter utilizing a CW pumped dye laser

Area of Science:

• Biotechnology
• Optical Engineering
• Analytical Chemistry

Background:

• Existing single laser flow sorters have limitations in excitation beam control.
• Advanced flow cytometry requires precise control over excitation sources for enhanced sensitivity and specificity.

Purpose of the Study:

• To develop a dual laser flow sorter by integrating a dye laser into a single laser system.
• To improve the spatial and temporal separation of excitation beams and sample emissions.

Main Methods:

• Modified an existing single laser flow sorter by incorporating a dye laser.
• Utilized argon ion laser emission as both a pump source and excitation source via beam splitting.
• Recombined and focused both laser emissions using the original optical train.
• Implemented imaging on the flow sorter stream for spatial and temporal beam separation.

Main Results:

• Successfully constructed a functional dual laser flow sorter.
• Achieved spatial and temporal separation of excitation beams and subsequent sample emissions.
• Demonstrated a method for enhancing flow sorter capabilities with a dual laser configuration.

Conclusions:

• The dual laser flow sorter design is feasible and effective.
• This modification enhances the capabilities of existing flow sorter systems.
• The improved beam separation offers potential for more refined cellular analysis.