Ultra high resolution and ultra high sensitivity laser spectroscopy with optical frequency comb and high finesse resonator

研制了一种超高分辨率、超高灵敏度的光谱系统。为了获得超高分辨率和超高灵敏度，分别使用了光学频率梳和高精细度光学谐振腔。设计和制作了该系统，并将其应用于萘和碘分子的无多普勒光谱。在所获得的光谱中，甚至旋转线都得到了很好的分辨。这项工作在分子光谱领域实现了最高的频率分辨率，其中需要进行大范围的频率扫描。

A spectroscopic system with ultra high resolution and with ultra high sensitivity was developed. In order to attain the ultra high resolution and the ultra high sensitivity, an optical frequency comb and a high finesse optical resonator were used, respectively. The system was designed and manufactured, and was applied to the Doppler free spectroscopy of naphthalene and iodine molecule. In the obtained spectra, even rotational lines were well resolved. The highest frequency resolution in the area of molecular spectroscopy, where the wide range frequency scan is necessary, is accomplished in this work.