XU Xue-zhe, ZHAO Wei-xiong, DONG Mei-li, GU Xue-jun, HU Chang-jin, GAI Yan-bo, GAO Xiao-ming, HUANG Wei, ZHANG Wei-jun. Monitoring aerosol extinction with cavity enhanced/ring-down spectroscopy: A brief review[J]. Chinese Journal of Quantum Electronics, 2014, 31(4): 477