Uncertainty on Brillouin scattering measurements on bulk materials using a power laser

Patrice Salzenstein, Thomas Y. Wu
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Abstract

Through this paper, we describe the method leading to the estimation of the uncertainty. We aim to give an estimation of the uncertainty on the frequency peak by Brillouin Scattering Stimulation. It corresponds to the speed of phonons inside a material excited by a 532nm wavelength laser. The guideline follows the Guide to the Expression of Uncertainty in Measurement and its estimation is of 0.26% on the Brillouin frequency peak at 15.70 GHz for polymethyl methacrylate (PMMA).
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使用功率激光对块状材料进行布里渊散射测量的不确定性
本文介绍了估算不确定度的方法。我们的目的是估算布里渊散射激励频率峰值的不确定性。它对应于 532nm 波长激光激发的材料内部声子的速度。该指南遵循《测量不确定度表达指南》,其估计值为聚甲基丙烯酸甲酯(PMMA)在 15.70 GHz 处的布里渊频率峰值的 0.26%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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