期刊文献+

利用干涉探测技术对相干声子的研究

Study on Coherent Phonons in Aluminum Film by Interferometric Probing Technique
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摘要 利用带有环形回路的干涉探测装置,研究了光程差精确为零时参考光和探测光的相干振荡信号,对数据的拟合给出了相干声子诱导的折射率相关变化.由信噪比较高的反射率相位变化信号,不仅清楚地辨别出铝膜中的四种相干声子模式,还分辨出声子回波信号. Using interferometric probing equipment with a ring loop, the coherent oscillation between the reference and probe pulses with the same optical distance is studied and the refractivity index changes is given. Moreover, through the signal of reflection index changes, phonon echo and four coherent phonon modes are distinguished in aluminum film.
出处 《光子学报》 EI CAS CSCD 北大核心 2008年第2期256-259,共4页 Acta Photonica Sinica
基金 上海理工大学博士启动基金(X732)资助
关键词 非线性光学 折射率变化 相干声子 声子回波 Nonlinear optics Refractivity index change Coherent phonon Phonon echo
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参考文献11

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