本文使用共振多程池的光声探测法对CO_2和SF_6分子的无多普勒饱和吸收光谱进行了实验研究。

The Doppler-free saturated spectroscopy of the CO2 and SF6 molecules is investigated experimentally by using optoacoustic detection with a resonant multipass cell.

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其次，在高速采集卡的基础上设计研制了基于多元线性阵列探测器系统的快速光声层析成像装置，首次实现了基于多元阵列探测器的光声成像。

Then, a multi-element linear transducer array system based on the high-speed data acquisition card was designed and realized photoacoustic imaging by it firstly.

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