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Related Experiment Video

Updated: Jun 8, 2026

Micro-particle Image Velocimetry for Velocity Profile Measurements of Micro Blood Flows
07:53

Micro-particle Image Velocimetry for Velocity Profile Measurements of Micro Blood Flows

Published on: April 25, 2013

Ultrahigh sensitivity laser Doppler velocimetry with a microchip solid-state laser.

K Otsuka

    Applied Optics
    |September 24, 2010
    PubMed
    Summary

    This study demonstrates a highly sensitive laser Doppler velocimetry technique. It enables simultaneous measurement of multiple moving objects and vibration sensing using a novel laser system.

    Area of Science:

    • Optics and Photonics
    • Laser Physics
    • Measurement Science

    Background:

    • Laser Doppler velocimetry (LDV) is a non-contact optical technique for measuring velocity.
    • Existing LDV systems face challenges in simultaneously measuring multiple objects or integrating vibration sensing.
    • Microchip solid-state lasers offer compact and efficient platforms for advanced optical measurements.

    Purpose of the Study:

    • To demonstrate a novel, highly sensitive laser Doppler velocimetry (LDV) system.
    • To achieve simultaneous measurement of light-scattering objects moving at different velocities.
    • To integrate vibration sensing capabilities into the LDV system.

    Main Methods:

    • Utilizing an externally pumped microchip solid-state laser.
    • Implementing Doppler-shifted light-injection-induced intensity modulation.

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    Quantitative Locomotion Study of Freely Swimming Micro-organisms Using Laser Diffraction

    Published on: October 25, 2012

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    Last Updated: Jun 8, 2026

    Micro-particle Image Velocimetry for Velocity Profile Measurements of Micro Blood Flows
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    Published on: April 25, 2013

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    High-speed Particle Image Velocimetry Near Surfaces

    Published on: June 24, 2013

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    Quantitative Locomotion Study of Freely Swimming Micro-organisms Using Laser Diffraction

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  • Developing a system for simultaneous multi-velocity measurement and vibration sensing.

    • Main Results:

    • Successful demonstration of highly sensitive laser Doppler velocimetry.
    • Achieved simultaneous measurement of multiple light-scattering objects with varying velocities.
    • Validated the integrated vibration sensing capability based on Doppler-shifted light modulation.

    Conclusions:

    • The developed system offers a significant advancement in laser Doppler velocimetry.
    • The technique allows for simultaneous measurement of multiple moving objects and vibration.
    • This approach provides a versatile tool for applications requiring precise velocity and vibration analysis.