Acoustic fields detected by a laser interferometer in aluminum single crystals

Elastic fields in aluminum single crystals are studied using the laser inte rferometry technique. The and [111] axes and also for small deviations from the [111] axis. The energy distribution is measured in the [001] transitio n region between the near and far fields. The energy of transverse elastic waves in the case of the propagation along the [111]-axis is distributed wi thin a sector. The deviation of the propagation direction from this axis le ads to radical changes in the energy distribution. (C) 2001 MAIK "Nauka/Int erperiodica".