·Table of Contents
·Methods and Instrumentation

Principle and Applications of Practical Shear Wave Lens at Low frequencies for Scanning Acoustic Microscopy

Chiaki MIYASAKA, and Bernhard R. TITTMANN
Department of Engineering Science & Mechanics
The Pennsylvania State University
212 Earth and Engineering Science Building, University Park, PA 16802, USA



Concept of Lens Design

Reduction of Superimposed Surface Information

Reduction of Spherical Aberration



  1. R. A. Lemons and C. F. Quate: "Acoustic microscope-scanning version", Appl. Phys. Lett., 24, pp. 163 - 165, (1974)
  2. B. T. Kuri-Yakub and C-H Chou: "Acoustic microscope lenses with shear wave transducers", IEEE 1986 Ultrasonic Symposium, pp.741 - 744, IEEE, New York, (1986)
  3. D. A. Davids and P. Y. We and D. Chizhik: "Restricted aperture acoustic microscope lens for Rayleigh wave imaging", Appl. Phys., Lett., 54(17), pp. 1639 - 1641, (1989)
  4. A. Atalar, H. Koymen, and L. Degertekin: "Characterization of layered materials by the Lamb wave lens," in Proc. of IEEE 1990 Ultrasonics Symposium, pp. 359 - 362, (1990)
  5. A. Atalar, I. Ishikawa, Y. Ogura and K. Tomita: "Anisotropy sensitivity of an acoustic lens with slit aperture," in Proc. of IEEE 1993 Ultrasonics Symposium, pp. 613 - 616, (1993)

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