Titre :

Supercritical parametric wave phase conjugation as an instrument for narrowband analysis in ultrasonic harmonic imaging

Auteur(s) :

Krutyansky, Leonid [Auteur]
A. M. Prokhorov General Physics Institute [GPI]
Pernod, Philippe [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]
Brysev, Andrey [Auteur]
A. M. Prokhorov General Physics Institute [GPI]
Bunkin, Fedor V. [Auteur]
A. M. Prokhorov General Physics Institute [GPI]
Preobrazhensky, Vladimir [Auteur]
Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN]

Titre de la revue :

IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control

Pagination :

409-414

Éditeur :

Institute of Electrical and Electronics Engineers

Date de publication :

2002

ISSN :

0885-3010

Discipline(s) HAL :

Sciences de l'ingénieur [physics]

Résumé en anglais : [en]

Supercritical parametric wave phase conjugation (SWPC) is used for selection and phase conjugation of harmonic components of a nonlinear incident wave. Amplitude of the phase conjugate wave in a supercritical mode is high ...
Lire la suite >Supercritical parametric wave phase conjugation (SWPC) is used for selection and phase conjugation of harmonic components of a nonlinear incident wave. Amplitude of the phase conjugate wave in a supercritical mode is high enough for acoustic nonlinearity of propagation medium to appear. As a result, in particular, doubled and quadrupled frequencies of the incident wave become available for image formation at the same order of the medium nonlinearity. The improvement of the imaging system resolution because of harmonic analysis of the received acoustic signal and compensation of phase distortions caused by wave phase conjugation were observed simultaneously when propagation medium was inhomogeneous.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

• Institut d'Électronique, de Microélectronique et de Nanotechnologie (IEMN) - UMR 8520

Source :

Harvested from HAL