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Ferroelectrics Volume 344, 2006 - Issue 1
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Original Articles

Parametric Interaction of Acoustic Signals in Ferroelectric Liquid Crystals

A. P. Fedoryako Scientific and Technological Corporation, “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Kharkov, 60 Lenin Ave, Kharkov, 61001, Ukraine
,
E. V. Popova Scientific and Technological Corporation, “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Kharkov, 60 Lenin Ave, Kharkov, 61001, Ukraine
,
A. V. Palamar Scientific and Technological Corporation, “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Kharkov, 60 Lenin Ave, Kharkov, 61001, Ukraine
&
E. Yu. Kopeychenko Scientific and Technological Corporation, “Institute for Single Crystals” of National Academy of Sciences of Ukraine, Kharkov, 60 Lenin Ave, Kharkov, 61001, Ukraine
Pages 233-238 | Received 12 Sep 2005, Published online: 10 Mar 2011
 
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Interaction of acoustic signals was investigated in a cell of ferroelectric liquid crystal (FLC). Oscillation lines of both the initial and the combination frequencies were detected in the spectrum of the electromechanical response. Dependencies of the vibration parameters of combination frequencies on the vibrations parameters of the sound and ultrasonic excitation were investigated. Combination frequencies appear as a result of non-linear dynamical properties of FLC.

Acknowledgments

We are grateful to V.V. Vashchenko for the synthesis of liquid crystals and chiral dopants.

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