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Wave phase conjugation of the stokes component of Brillouin scattering of ultrasound |
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| Authors: | Yu. V. Pyl’nov N. V. Smagin V. L. Preobrazhenskii F. Pernod |
| Affiliation: | (1) Ecole Centrale de Lille, Joint European Laboratory LEMAC: Institut d’Electronique et de Micro-Electronique et de Nanotechnologie (IEMN-DOAE-UMR CNRS 8520), Villeneuve d’Acsq, France;(2) Wave Research Center, Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991, Russia;(3) State Institute of Radio Engineering, Electronics, and Automatics, Moscow, 119454, Russia |
| Abstract: | Wave phase conjugation of a low-frequency ultrasonic wave due to Brillouin scattering of high-frequency parametrically phase conjugate waves in liquid was theoretically and experimentally studied. It was shown that the envelope of the low-frequency conjugate wave is proportional to the product of envelopes of high-frequency waves. The conjugation efficiency corresponds to the angular diagram of the resonant interaction of ultrasonic beams. Compensation for the phase shift of the plane low-frequency wave due to its wave phase conjugation was demonstrated. |
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