Sonoluminescence
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Description: W.A. Steer PhD provides details of his experiment to observe single-bubble sonoluminescence and to investigate its basic properties.
Sonoluminescence experiment: sound into light Sonoluminescence is a little-understood phenomenon whereby light is emitted by tiny bubbles suspended in a liquid subjected to intense acoustic fields. The aim of this work was to construct apparatus to enable the observation of single-bubble sonoluminescence, to investigate its basic properties, and leave a kit and instructions to form the basis of a future final-year undergraduate experiment. It was found that despite the apparent simplicity of the setup, to obtain successful and repeatable sonoluminescence required great care in the selection and tuning of system components, and a good degree of patience. The precision and stability of the signal generator was found to be particularly critical, and (if not building your own as I did) a modern digital piece of instrumentation is highly recommended. The widely-reported increase in bubble brightness at low temperatures was readily confirmed, and a simple Mie scattering arrangement configured to monitor the bubble size gave results consistent with those already published.
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| Page title: | Sonoluminescence experiment: sound into light |
| Keywords: | sonoluminescence SL Mie glowing bubble physics undergraduate practical experiment sound light |
| Description: | Detailed explanation of how I configured apparatus for the observation of sonoluminescence |
| IP-address: | 79.170.44.90 |
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| Date | Creation Date: 2001-10-05T16:05:02Z Expiry Date: 2018-10-05T16:05:02Z |