光声光谱技术应用于痕量气体浓度测量的研究进展
郑洪全, 戴景民*

Research Development of the Application of Photoacoustic Spectroscopy in Measurement of Trace Gas Concentration
ZHENG Hong-quan, DAI Jing-min*
(a)典型的气体激光器结构图; (b)CO2激光器的结构图