Home
For authors
Submission status

Current
Archive
Archive (English)
   Volumes 21-40
   Volumes 1-20
   Volumes 41-62
      Volume 62
      Volume 61
      Volume 60
      Volume 59
      Volume 58
      Volume 57
      Volume 56
      Volume 55
      Volume 54
      Volume 53
      Volume 52
      Volume 51
      Volume 50
      Volume 49
      Volume 48
      Volume 47
      Volume 46
      Volume 45
      Volume 44
      Volume 43
      Volume 42
      Volume 41
Search
VOLUME 61 (1995) | ISSUE 6 | PAGE 454
Self-focusing of ultrasound by random scattering objects in a liquid via parametric phase conjugation
A self-focusing of sound by a stream of air bubbles in water has been realized experimentally and visualized by an optical method. The focusing occurs as the result of parametric phase conjugation in a solid. The active medium which is responsible for the phase conjugation of the ultrasound scattered by the bubbles is a NiFe204-based ferrite in the alternating magnetic field of a longitudinal pump. © 1995 American Institute of Physics.