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Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
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Related Experiment Video

Updated: May 3, 2026

Fabrication and Testing of Microfluidic Optomechanical Oscillators
09:10

Fabrication and Testing of Microfluidic Optomechanical Oscillators

Published on: May 29, 2014

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Aerostatically tunable optomechanical oscillators.

Kewen Han, Jun Hwan Kim, Gaurav Bahl

    Optics Express
    |February 12, 2014
    PubMed
    Summary

    This study introduces a microfluidic optomechanical device that works with fluids and bioanalytes. It demonstrates simultaneous control of different mechanical modes, advancing self-referenced sensor technology.

    Area of Science:

    • Optomechanics
    • Microfluidics
    • Non-linear Optics

    Background:

    • Microfluidic optomechanical devices enable the study of non-solid states of matter.
    • These devices exhibit optomechanical oscillations driven by radiation pressure (RP) and stimulated Brillouin scattering (SBS).

    Purpose of the Study:

    • To experimentally investigate aerostatic tuning of hollow-shell microfluidic optomechanical oscillators.
    • To demonstrate simultaneous actuation of RP-induced and SBS-induced mechanical modes using a single laser.

    Main Methods:

    • Utilizing hollow-shell microfluidic optomechanical devices.
    • Experimentally investigating aerostatic tuning effects (geometry, stress, temperature).
    • Employing a single pump laser for simultaneous mode actuation.

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    Main Results:

    • Demonstrated aerostatic tuning of microfluidic optomechanical oscillators.
    • Achieved simultaneous actuation of radiation pressure-induced breathing modes and stimulated Brillouin scattering-induced whispering gallery acoustic modes.
    • Showcased operation with non-solid states of matter, including viscous fluids and bioanalytes.

    Conclusions:

    • Aerostatic tuning offers a method to control microfluidic optomechanical devices.
    • Simultaneous actuation of multiple modes is achievable with a single laser.
    • This work is a significant step towards developing self-referenced optomechanical sensor technologies.