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On Measurement of Viscosity and Elasticity Constants

 

作者: AnatoliyA. Kovalev,   VladimirN. Sadovsky,   NataliaA. Usova,  

 

期刊: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals  （Taylor Available online 1992）
卷期: Volume 223, issue 1  

页码: 1-9

 

ISSN:1058-725X

 

年代: 1992

 

DOI:10.1080/15421409208048235

 

出版商: Taylor & Francis Group

 

数据来源: Taylor

 

摘要:

It is shown that it is possible to determine such NLC constants as viscosity, elasticity and thermoconductivity simultaneously by measuring the NLC eigenmode relaxation times using the probing beam diffraction on the refractive index grating excited by short laser pulses. The amplitudes of gratings have been calculated. Optimal conditions for excitation and detection of the gratings have been pointed out.

 

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