Absorption spectroscopy using interference between optical frequency comb and single-wavelength laser
Absorption spectroscopy using interference between optical frequency comb and single-wavelength laser
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DOI：
10.1063/1.4742136
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发表时间：
2012-07
影响因子：
4
通讯作者：
K. Urabe;O. Sakai
中科院分区：
文献类型：
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作者：
K. Urabe;O. Sakai
光学频率梳不仅可用于频率测量，还可用于各种光谱测量，取代非相干宽带光源和单波长激光光源。在这项研究中，我们提出了一种利用频率梳激光光源测量单个电子跃迁的吸收光谱系统。这种光谱方法利用探测频率梳与附加的单波长激光之间的干涉，检测被干涉激光中拍频信号的功率谱。这种方法使我们能够测量单跃迁吸收光谱，而不需要使用大型光谱仪，也不需要扫描激光的频率。
Optical frequency combs have the potential to be applied not only to frequency metrology but also to various spectroscopic measurements replacing incoherent wide-frequency band light sources and single-wavelength laser sources. In this study, we propose a system of absorption spectroscopy for single electronic transitions using the frequency-comb laser source. This spectroscopic method utilizes the interference between the probing frequency comb and an additional single-wavelength laser beam and detects power spectra of beat signals in the interfered laser beam. This method enables us to measure single-transition absorption spectra neither using a large-scale spectrometer nor scanning the laser-beam frequency.