[1] A. O'Keefe. Integrated cavity output analysis of ultra-weak absorption [J]. Chem. Phys. Lett.,1998,293(5-6):331-336

[2] G. Berden,R. Peeters,G. Meijer. Cavity-enhanced absorption spectroscopy of the 1.5 mm band system of jet-cooled ammonia [J]. Chem. Phys. Lett.,1999,307(3-4):131-138

[3] A. S. -C.Cheung,Tongmei Ma,Hongbing Chen. High-resolution cavity enhanced absorption spectroscopy using an optical cavity with ultra-high reflectivity mirrors[J]. Chem. Phys. Lett.,2002,353(3-4):275-280

[4] Zhao Weixiong,Gao Xiaoming,Zhang Weijun et al.. High-sensitivity off-axis integrated cavity output spectroscopy [J]. Acta Optica Sinica,2006,26(8):1260-1264

[5] Zhao Weixiong,Gao Xiaoming. Wavelength modulated off-axis integrated cavity output spectroscopy in the near infrared [J]. Appl. Phy. B,2007,86:353-359

[6] Wu Shenghai,Yang Ming,Chen Yangqin et al.. Magnetic rotation cavity enhanced spectroscopy [J]. Acta Optica Sinica,2005,25(2):265-269

[7] Pei Shixin,Gao Xiaoming. Study of cavity enhanced absorption spectroscopy based on a swept diode laser[J]. Optics and Optoelectronic Technology,2004,2:30-33

[8] A. O'Keefe,J. J. Scherer,J. B. Paul. Cw integrated cavity output spectroscopy [J]. Chem. Phys. Lett.,1999,307(5-6):343-349

[9] Liu Yuyan,Li Fengting. Effert of modnlation on magnetic resonance lines[J]. Chinese J. Magnetic Resonance,1990,7:374-381