Title :
Multimode interference mechanism in V(z) curves obtained by acoustic line-focus beam
Author :
Kushibiki, J. ; Horii, K. ; Chubachi, N.
Author_Institution :
Tohoku University, Department of Electrical Engineering, Faculty of Engineering, Sendai, Japan
Abstract :
The multimode interference mechanism in the acoustic material signatures of V(z) curves, which generally deforms the dip intervals and the shape, is investigated theoretically and experimentally for the acoustic line-focus beam. It is shown, taking a (111)-Si substrate as an example, that V(z) curves associated with multiple leaky waves are represented as a superposition of elemental V(z) curves with different characteristic dip intervals corresponding to the respective velocities of the leaky waves.
Keywords :
acoustic wave interference; elemental semiconductors; focusing; silicon; surface acoustic waves; (111)-Si substrate; SAW; V(z) curves; acoustic line focus beam; acoustic material signatures; characteristic dip intervals; leaky wave velocity; multimode interference mechanism; multiple leaky waves; surface acoustic wave;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830249
