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Science Newsletter of the Faculty fo Physics
This is a new bulletin, which, as we hope, will bring fresh, updated information on scientific news, research activities, and related events in the life of our department to our staff members, undegraduate and graduate students, postdocs, collaborators and partners. We greatly hope that this Science Newsletter will help us to find new partners in research and shorten the way from fundamental research to applications and innovations, from our fundamental discoveries to their successful implementations in not too distant future.
XIV National School-Seminar "Wave phenomena in inhomogeneous media"
The conference papers from the School-Seminar «Waves-2014» will be submitted for publishing in the Memoirs of the Faculty of Physics journal.
| Journals » Memoirs of the Faculty of Physics » Issues » 2014 » # 5 |
The modification method of the microwave acoustic resonator spectroscopy of thin layers and films for measurements over a wide frequency range
S.G. Alekseev, I.M. Kotelyanskii, N.I. Polzikova, G.D. Mansfeld
Mokhovaya Str., 11, build.7, Moscow 125009, RussiaThe spectrum of the composite acoustic resonator (HBAR) is a multimode, and may contain several thousand resonance peaks. We have developed a set of programs that allows recording the spectrum scans with arbitrary frequency step within the whole frequency range of the network analyzer. Due to the high degree of automation of the processing of scans we obtain data on the parameters (frequency and width) of each resonance peak. Proposed method increases the accuracy of the previously known method of measuring the velocity of an acoustic wave (AW) of the material by comparing the spectra HBAR before and after developing the test layer. For the layers with the thickness of a few wavelengths the new method allows to obtain information about the velocity from only one AW spectrum.
| URL: | http://uzmu.phys.sunmarket.com/abstract/2014/5/145321 |
| PACS: | 43.35.+d Ultrasonics, quantum acoustics, and physical effects of sound 46.80.+j Measurement methods and techniques in continuum mechanics of solids |
| UDC: | 534-8 |
| Цитата: | С.Г. Алексеев, И.М. Котелянский, Н.И. Ползикова, Г.Д. Мансфельд. Модификация метода СВЧ акустической резонаторной спектроскопии тонких слоев и пленок для измерений в широком частотном диапазоне // Учен. зап. физ. фак-та Моск. ун-та. 2014. № 5. 145321 |