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Pulsed lasers in particle detection and sizing.

K J Grant, J A Piper, D J Ramsay

    Applied Optics
    |August 31, 2010
    PubMed
    Summary
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    Pulsed copper vapor lasers can detect and size particles, even with a low duty cycle. Forward light scatter from 5-micrometer latex spheres was successfully detected, showing feasibility for particle analysis.

    Area of Science:

    • Optics and Photonics
    • Particle Science and Technology

    Background:

    • Particle detection and sizing are crucial in various scientific fields.
    • Pulsed lasers offer unique properties for interaction with particles.

    Purpose of the Study:

    • To investigate the feasibility of using pulsed copper vapor lasers for particle detection and sizing.
    • To assess the effectiveness of this laser type despite its low duty cycle.

    Main Methods:

    • Utilizing a pulsed copper vapor laser system.
    • Measuring the forward scatter of light from standard latex spheres.
    • Analyzing the detected scatter signal for particle characterization.

    Main Results:

    • Successfully detected the forward scatter of light from 5-micrometer latex spheres.

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  • Demonstrated particle detection is possible even with a low laser duty cycle (0.025%).

    • Conclusions:

    • Pulsed copper vapor lasers are a feasible tool for particle detection and sizing.
    • The low duty cycle does not preclude effective particle analysis using this laser technology.