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arXiv 0912.0831physics.opticsphysics.atom-ph
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饱和吸收腔衰荡光谱

Saturated-absorption cavity ring-down spectroscopy

G. Giusfredi, S. Bartalini, S. Borri, P. Cancio, I. Galli, D. Mazzotti, P. De Natale

摘要:

本文报道了一种新的光腔衰荡光谱方法,样品气体处于饱和吸收区。这种技术允许去耦,并同时检索空腔背景和吸收信号,通过我们开发和测试的理论模型。利用光谱应用的高灵敏度和频率精度,首次测量了自然丰度的$^{17}$ O $^{12}$ C $^{16}$ O的激发振动态的超精细结构,其精度为$10^{-11}$中的几个部分。

英文摘要:

We report on a novel approach to cavity-ring-down spectroscopy with the sample gas in saturated-absorption regime. This technique allows to decouple and simultaneously retrieve empty-cavity background and absorption signal, by means of a theoretical model that we developed and tested. The high sensitivity and frequency precision for spectroscopic applications are exploited to measure, for the first time, the hyperfine structure of an excited vibrational state of $^{17}$O$^{12}$C$^{16}$O in natural abundance with an accuracy of a few parts in $10^{-11}$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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