Title :
Acoustic Emission of Non-Spherical Germs During Phases Formation in Solids
Author :
Ivanov, Alexey Yu ; Kapytski, Andpey V.
Author_Institution :
Grodno State Univ.
fDate :
June 29 2006-July 1 2006
Abstract :
The acoustic emission of an ensemble of growing germs of a new phase in elastic medium, initiated by laser treating of solids was investigated. The analysis of acoustic emission showed, that the ensemble of growing genus generates acoustic waves which frequencies omegaE are simply connected with the size R of heterogeneities (germs), and the intensity of each spectral component is determined by their concentration n(R). If we direct a laser beam on the sample, the radiation will be dispersed on the hypersonic waves, and the scattering angle will be simple connected with the frequency of an acoustic wave and therefore with the sizes of a germs R. Multiply repeating this operation, it is possible to trace development of an ensemble of actuations in time
Keywords :
acoustic emission; acousto-optical effects; bioacoustics; biological techniques; laser beam effects; laser materials processing; light scattering; microorganisms; acoustic emission; acoustic wave; elastic medium; germ diagnostics; hypersonic waves; laser beam; laser materials processing; nonspherical germs; phase formation; scattering angle; solids; Acoustic beams; Acoustic emission; Acoustic scattering; Acoustic waves; Chemical lasers; Frequency; Laser applications; Laser beams; Laser theory; Solid lasers; acoustic emission; distribution of heterogeneities; elastic medium; germ diagnostics; new phase;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling, 8-th International Conference on
Conference_Location :
Kharkiv
Print_ISBN :
1-4244-0233-6
Electronic_ISBN :
1-4244-0234-4
DOI :
10.1109/LFNM.2006.252054
