Title :
Harmonic C-scan imaging by means of nonlinear finite amplitude phase conjugate ultrasonic waves
Author :
Pyl´nov, Yu.V. ; Pernod, P. ; Preobrazhensky, V.L.
Author_Institution :
Moscow Inst. of Radio Eng., Electron. & Autom., Russia
Abstract :
Supercritical magneto-elastic wave phase conjugation is applied to harmonic imaging in acoustic C-scan microscopy. Possibilities of compensation of phase aberrations introduced in harmonic image by inhomogeneity of the propagation medium is demonstrated experimentally and explained theoretically. Improvement of resolution of the images by use of the second-harmonic of the phase-conjugate wave is shown
Keywords :
acoustic microscopy; magnetoelastic waves; nonlinear acoustics; ultrasonic imaging; acoustic microscopy; harmonic C-scan imaging; inhomogeneous medium; magnetoelastic wave; nonlinear finite amplitude wave; phase aberration compensation; ultrasonic wave phase conjugation; Acoustic imaging; Acoustic propagation; Frequency; Image resolution; Magnetic force microscopy; Magnetic materials; Photonic crystals; Polymers; Rubber; Ultrasonic imaging;
Conference_Titel :
Ultrasonics Symposium, 2000 IEEE
Conference_Location :
San Juan
Print_ISBN :
0-7803-6365-5
DOI :
10.1109/ULTSYM.2000.922672
