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The interaction of high power infra-red laser radiation with matter can give rise to many
interesting phenomena which have attracted considerable attention since the development of the laser.
The type of phenomena which occurs can be divided into two classes depending upon whether laser
energy absorption has occured or not. Examples of where absorption occurs include water at 10.6 .tm as
produced by a CO2 laser. In this case, for low laser energies the interaction takes place via a
thermoelastic mechanism resulting in volume expansion followed by a number of acoustic effects. At
higher laser energy densities above the vaporization threshold of the liquid, the absorption of energy may
give rise to a vapour cavity and the formation of microbubbles in the liquid. This process may be
followed by vapour breakdown ifthe energy density is high enough.
Y. H. Jin,R. J. Chen,S. J. Shaw, andDavid C. Emmony
"Optical investigation of laser interaction with materials", Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182084
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Y. H. Jin, R. J. Chen, S. J. Shaw, David C. Emmony, "Optical investigation of laser interaction with materials," Proc. SPIE 2321, Second International Conference on Optoelectronic Science and Engineering '94, (5 August 1994); https://doi.org/10.1117/12.182084