| Issue |
J. Phys. IV France
Volume 04, Number C5, Mai 1994
3ème Congrés français d'acoustique3rd French conference on acoustics |
|
|---|---|---|
| Page(s) | C5-733 - C5-736 | |
| DOI | https://doi.org/10.1051/jp4:19945158 | |
3ème Congrés français d'acoustique
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-733-C5-736
DOI: 10.1051/jp4:19945158
Department of Electrical Engineering, Faculty of Engineering, Doshisha University, Kamigyo-ku, 602 Kyoto, Japan
© EDP Sciences 1994
3rd French conference on acoustics
J. Phys. IV France 04 (1994) C5-733-C5-736
DOI: 10.1051/jp4:19945158
Waveform transition in the transient focusing field
T. OTANI and H. TOMINAGADepartment of Electrical Engineering, Faculty of Engineering, Doshisha University, Kamigyo-ku, 602 Kyoto, Japan
Abstract
In classical optics and acoustics, the focusing field for harmonic or monochromatic waves is characterized by a phenomenon of wave concentration and phase anomaly. For the transient focusing field, significant waveform deformation or waveform transition takes place in the vicinity of the focus. It is shown here theoretically and experimentally that the focusing of the transient wave is characterized by time reversal and polarity inversion effects.
© EDP Sciences 1994