Chinese Optics Letters, 2003, 1 (6): 06361, Published Online: Jun. 6, 2006
Cavity enhanced absorption spectroscopy for N_(2)O detection at 2.86 μm using a continuous tunable color center laser 
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300.6360 spectroscopy laser 300.1030 absorption 140.1700 color center lasers 300.6390 spectroscopy molecular
Abstract
The cavity enhanced absorption technique is applied to N2O detection around 2.86 μm using a continuouswave color center laser. A high-finesse triangular ring cavity is used in this technology. Transmission through the cavity is obtained by jittering the cavity-length with a piezo on one of the cavity mirrors. A minimum detectable absorption coefficient of 2 * 10^(-6) cm^(-1) is achieved with a mirror reflectivity of 99.24%, corresponding to a N_(2)O detection limit of 600 parts per billion.
Shaocheng Li, Qingxu Yu, Maarten van Herpen, Sacco te Lintel Hekkert, Frans J. M. Harren. Cavity enhanced absorption spectroscopy for N_(2)O detection at 2.86 μm using a continuous tunable color center laser[J]. Chinese Optics Letters, 2003, 1(6): 06361.
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