{"title":"Influence of a Strong Pump Wave on a Weak Probe Wave in a Resonator Made of Annealed Polycrystalline Copper","authors":"V. E. Nazarov, A. B. Kolpakov","doi":"10.1007/s11141-025-10403-5","DOIUrl":null,"url":null,"abstract":"<p>We present the results of experimental and theoretical studies on the effect of a strong pump wave on a weak probe wave in an acoustic rod resonator (with rigid and soft boundaries) made of annealed polycrystalline copper. The measurements were carried out with simultaneous excitation of the resonator in its first and fourth longitudinal modes. An analytical description of nonlinear effects (changes in the amplitude and frequency of resonant oscillations for a weak wave under the influence of a strong one) is developed within the framework of the hysteretic equation of state for a polycrystalline solid with saturation of amplitude-dependent internal friction. By comparing the experimental and analytical amplitude dependences of the nonlinear effects, we determined the parameters of the hysteresis nonlinearity of annealed copper for various combinations of strong and weak wave frequencies corresponding to the first and fourth resonator modes.</p>","PeriodicalId":748,"journal":{"name":"Radiophysics and Quantum Electronics","volume":"67 8","pages":"627 - 638"},"PeriodicalIF":0.7000,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiophysics and Quantum Electronics","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1007/s11141-025-10403-5","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
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Abstract
We present the results of experimental and theoretical studies on the effect of a strong pump wave on a weak probe wave in an acoustic rod resonator (with rigid and soft boundaries) made of annealed polycrystalline copper. The measurements were carried out with simultaneous excitation of the resonator in its first and fourth longitudinal modes. An analytical description of nonlinear effects (changes in the amplitude and frequency of resonant oscillations for a weak wave under the influence of a strong one) is developed within the framework of the hysteretic equation of state for a polycrystalline solid with saturation of amplitude-dependent internal friction. By comparing the experimental and analytical amplitude dependences of the nonlinear effects, we determined the parameters of the hysteresis nonlinearity of annealed copper for various combinations of strong and weak wave frequencies corresponding to the first and fourth resonator modes.
期刊介绍：
Radiophysics and Quantum Electronics contains the most recent and best Russian research on topics such as:
Radio astronomy;
Plasma astrophysics;
Ionospheric, atmospheric and oceanic physics;
Radiowave propagation;
Quantum radiophysics;
Pphysics of oscillations and waves;
Physics of plasmas;
Statistical radiophysics;
Electrodynamics;
Vacuum and plasma electronics;
Acoustics;
Solid-state electronics.
Radiophysics and Quantum Electronics is a translation of the Russian journal Izvestiya VUZ. Radiofizika, published by the Radiophysical Research Institute and N.I. Lobachevsky State University at Nizhnii Novgorod, Russia. The Russian volume-year is published in English beginning in April.
All articles are peer-reviewed.
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