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.

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所属栏目：spectroscopy

收稿日期：2002-12-12

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联系人作者：Qingxu Yu(yuqx@dlut.edu.cn)

备注：The authors would like to thank Rudy Peeters and Giel Berden for their assistance and discussions; Cor Sikkens and Peter Claus for their technical support, all my colleagues of the Life Science Trace Gas Exchange Facility for their kindly help at all aspects. Here, we specially thank the Royal Netherlands Academy of Arts and Sciences. This work was supported by the Doctoral Scientific Research Fund of Education Ministry of China (1999014106). Q. Yu is the author to whom the correspondenceshould be addressed, his e-mail address is yuqx@dlut.edu.cn

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引用该论文

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," Chinese Optics Letters 1(6), 361-363 (2003)

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【2】赵卫雄,高晓明,张为俊,黄腾. 高灵敏度离轴积分腔输出光谱技术. 光学学报, 2006, 26(8): 1260-1264