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Name:  Carmen Cecilia G.
Status:  student
Age:  30s
Location: N/A
Country: N/A
Date: 2000-2001


Question:
What is sonoluminescense?


Replies:
Hello,

I had not heard about it either but I looked it up. Here is what I found.

Sonoluminescense means generating light from sound. As you know, we can impart energy via sound (that is how sound excites our ears, hence hearing). As a further example, you can feel the energy of sound in the form of fluctuating air pressure in front of a high power speaker. Pressure (from sound or mechanical force) can induce a voltage in some materials; these are referred to as piezoelectric materials. Sonoluminescent materials perhaps work the same way but instead of (or in addition to?) producing a voltage they produce light. I am not sure if phenomenon of Sonoluminescense is well understood. I recommend that you look at this lengthy web page for more information:

http://www.people.virginia.edu/~das4k/october.html

I hope this helps you in your research.

AK --

Ali Khounsary, Ph.D.
Advanced Photon Source
Argonne National Laboratory


For a good definition and introduction, see http://www-phys.llnl.gov/N_Div/sonolum/.

I have looked at many other sites, and this is the most clear.

Richard E. Barrans Jr., Ph.D.
Assistant Director
PG Research Foundation, Darien, Illinois



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