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首页> 外文期刊>Optics Letters >Spectral line-shape measurement of an extremely weak amplitude-fluctuating light source by photon-counting-based second-order correlation spectroscopy
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Spectral line-shape measurement of an extremely weak amplitude-fluctuating light source by photon-counting-based second-order correlation spectroscopy

机译:基于光子计数的二阶相关光谱法测量极弱振幅波动光源的光谱线形

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摘要

We demonstrate line-shape measurement of an extremely weak amplitude-fluctuating light source by using photon-counting-based second-order correlation spectroscopy combined with the heterodyne technique. The amplitude fluctuation of a finite bandwidth introduces a low-lying spectral structure in the line shape, and thus its effect can be isolated from that of the phase fluctuation. Our technique provides extreme sensitivity suited for single-atom-level applications.
机译:通过结合基于外差技术的基于光子计数的二阶相关光谱,我们演示了一种极弱的幅度波动光源的线形测量。有限带宽的幅度波动引入了线形的低层频谱结构,因此可以将其影响与相位波动的影响隔离开。我们的技术可提供极高的灵敏度,适用于单原子级应用。

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