用高灵敏度激光腔内吸收光谱方法研究分子高振动态的高分辨光谱

High-resolution Spcctroscopy of Molecular Highly Excited Vibrational States by High-sensitive Intracavity Laser Absorption Spectrometer

描述了激光腔内吸收光谱的工作原理并通过建立的光谱仪对这种方法的可靠性作了探讨.实验表明光谱仪的探测灵敏度极限可达10～(-10)cm～(-1).用该光谱仪测量和分析了HDO分子的(500)带高分辨振转光谱,拟合得到了振转参数.

The present study describes the principle and performance of the intracavity laser absorption spectrometer. It was shown that the detection limit of this setup reaches 10-10cm-1. The vibration-rotation spectrum of HDO (500) band was recorded by ICLAS and analysed, yielding a set of vibration-rotation parameters.