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A method of detecting ethanol vapor concentration using a narrow bandwidth tunable diode laser is studied. The relatively narrow absorption feature in the vicinity of 7180 cm-1 is used as an identification of ethanol vapor. To eliminate the interference of water vapor, multidimensional linear regression analysis is used to solve the problem of multiple molecule absorptions. The detection limit is obtained to be 25 ppm·m experimentally.
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Keywords:
- spectroscopy /
- ethanol vapor /
- diode laser /
- broadband absorption
[1] Jones A W 2000 Forensic Sci. Rev. 12 23
[2] Azzazy M, Chau T, Wu M 1995 Lasers and Electro-Optics Society Annual Meeting San Francisco, USA, October 30-31, 1995 (Vol. 1) p320
[3] Shao J, Tang Q J, Cheng C, Li Z Y, Wu Y X 2010 Symposium on Photonics and Optoelectronic Chengdu, China, June 19-21, 2010 p1
[4] Kan R F, Liu W Q, Zhang Y J, Liu J G, Dong F Z, Gao S H, Wang M, Chen J 2005 Acta Phys. Sin. 54 1927 (in Chinese) [阚瑞峰, 刘文清, 张玉钧, 刘建国, 董凤忠, 高山虎, 王敏, 陈军 2005 54 1927]
[5] McNesby K L, Wainner R T, Daniel R G, Miziolek A W, Jackson W M, McLaren I A 2000 Appl. Opt. 39 5006
[6] Nadezhdinskii A, Berezin A, Bugoslavsky Y, Ershov O, Kutnyak V 1999 Spectrochim. Acta A 55 2049
[7] Kosterev A A, Curl R F, Tittel F K, Gmachi C, Capasso F, Sivco D L, Baillargeon J N, Hutchinson A L, Cho A Y 2000 Appl. Opt. 39 4425
[8] Geng H, Zhang Y J, Liu W Q, Liu J G, Ruan J, Xu Z Y, Yao L, Kan R F 2012 J. Atmosph. Environ. Opt. 7 57 (in Chinese) [耿辉, 张玉钧, 刘文清, 刘建国, 阮俊, 许振宇, 姚路, 阚瑞峰 2012 大气与环境光学学报 7 57]
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[1] Jones A W 2000 Forensic Sci. Rev. 12 23
[2] Azzazy M, Chau T, Wu M 1995 Lasers and Electro-Optics Society Annual Meeting San Francisco, USA, October 30-31, 1995 (Vol. 1) p320
[3] Shao J, Tang Q J, Cheng C, Li Z Y, Wu Y X 2010 Symposium on Photonics and Optoelectronic Chengdu, China, June 19-21, 2010 p1
[4] Kan R F, Liu W Q, Zhang Y J, Liu J G, Dong F Z, Gao S H, Wang M, Chen J 2005 Acta Phys. Sin. 54 1927 (in Chinese) [阚瑞峰, 刘文清, 张玉钧, 刘建国, 董凤忠, 高山虎, 王敏, 陈军 2005 54 1927]
[5] McNesby K L, Wainner R T, Daniel R G, Miziolek A W, Jackson W M, McLaren I A 2000 Appl. Opt. 39 5006
[6] Nadezhdinskii A, Berezin A, Bugoslavsky Y, Ershov O, Kutnyak V 1999 Spectrochim. Acta A 55 2049
[7] Kosterev A A, Curl R F, Tittel F K, Gmachi C, Capasso F, Sivco D L, Baillargeon J N, Hutchinson A L, Cho A Y 2000 Appl. Opt. 39 4425
[8] Geng H, Zhang Y J, Liu W Q, Liu J G, Ruan J, Xu Z Y, Yao L, Kan R F 2012 J. Atmosph. Environ. Opt. 7 57 (in Chinese) [耿辉, 张玉钧, 刘文清, 刘建国, 阮俊, 许振宇, 姚路, 阚瑞峰 2012 大气与环境光学学报 7 57]
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