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Updated: Jun 16, 2026

Constructing a Low-budget Laser Axotomy System to Study Axon Regeneration in C. elegans
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Improvements to a home-built nitrogen laser.

M Feldman, P Lebow, F Raab

    Applied Optics
    |February 19, 2010
    PubMed
    Summary

    This study presents design improvements for a nitrogen laser, enhancing optical quality and reducing costs. The upgraded laser achieves a 9-nanosecond pulse with over 0.7 MW peak power.

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    Area of Science:

    • Physics
    • Laser Technology
    • Optical Engineering

    Background:

    • Nitrogen lasers are crucial for various scientific applications.
    • Previous designs had limitations in optical quality and construction complexity.
    • Optimizing laser performance and manufacturability is an ongoing research area.

    Purpose of the Study:

    • To present significant design enhancements for a nitrogen laser system.
    • To improve the optical quality of the output beam.
    • To reduce the cost and complexity of laser channel construction.

    Main Methods:

    • Redesigned the active region for a larger cross-section and shorter length.
    • Implemented transverse gas flow for more uniform pressure.
    • Utilized a 24 kV power supply and 10 Hz pulse frequency.

    Main Results:

    • Achieved an output beam with improved optical quality.
    • Developed a laser channel that is cheaper and easier to build.
    • Generated a 9-nanosecond pulse (full width at half-maximum).
    • Exceeded 0.7 MW peak power output.

    Conclusions:

    • The design improvements successfully enhance nitrogen laser performance and practicality.
    • The optimized design offers a cost-effective solution with superior beam quality.
    • This enhanced nitrogen laser is suitable for applications requiring high peak power and good optical quality.

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