HIGH-PRECISION MEASUREMENTS OF BRILLOUIN-SCATTERING FREQUENCIES

被引：31

作者：

SUSSNER, H

VACHER, R

机构：

[1] Max-Planck-Institut fur Festkorperforschung, Stuttgart 80

[2] Universite des Sciences et Techniques du Languedoc, Laboratoire de Spectrometrie Rayleigh-Brillouin, Montpellier Cedex

来源：

APPLIED OPTICS | 1979年 / 18卷 / 22期

关键词：

D O I：

10.1364/AO.18.003815

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new method for the accurate measurement of Brillouin line shifts is presented.By modulating a reference beam at a microwave frequency corresponding exactly to the shift of the Brillouin line, the Brillouin scattering frequency is obtained by direct comparison.Previous errors due to imperfect calibration and nonlinearity of the Fabry-Perot interferometer are therefore eliminated.The first absolute measurement of 35-GHz hypersound velocitywith a 10-4 relative uncertainty is reported.© 1979 Optical Society of America.

引用

页码：3815 / 3818

页数：4

共 7 条

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