Development of an incoherent broad-band cavity-enhanced aerosol extinction spectrometer and its application to measurement of aerosol optical hygroscopicity

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dc.contributor.author Zhao, Weixiong
dc.contributor.author Xu, Xuezhe
dc.contributor.author Fang, Bo
dc.contributor.author Zhang, Qilei
dc.contributor.author Qian, Xiaodong
dc.contributor.author Wang, Shuo
dc.contributor.author Liu, Pan
dc.contributor.author Zhang, Weijun
dc.contributor.author Wang, Zhenzhu
dc.contributor.author Liu, Dong
dc.contributor.author Huang, Yinbo
dc.contributor.author Venables, Dean S.
dc.contributor.author Chen, Weidong
dc.date.accessioned 2018-06-13T08:52:53Z
dc.date.available 2018-06-13T08:52:53Z
dc.date.issued 2017-02-02
dc.identifier.citation Zhao, W., Xu, X., Fang, B., Zhang, Q., Qian, X., Wang, S., Liu, P., Zhang, W., Wang, Z., Liu, D., Huang, Y., Venables, D. S. and Chen, W. (2017) 'Development of an incoherent broad-band cavity-enhanced aerosol extinction spectrometer and its application to measurement of aerosol optical hygroscopicity', Journal of Applied Optics, 56(11), pp. E16-E22. doi:10.1364/AO.56.000E16 en
dc.identifier.volume 56 en
dc.identifier.issued 11 en
dc.identifier.startpage 16 en
dc.identifier.endpage 22 en
dc.identifier.issn 1559-128X
dc.identifier.issn 2155-3165
dc.identifier.uri http://hdl.handle.net/10468/6286
dc.identifier.doi 10.1364/AO.56.000E16
dc.description.abstract We report on the development of a blue light-emitting-diode-based incoherent broad-band cavity-enhanced absorption spectroscopy (IBBCEAS) instrument for the measurement of the aerosol extinction coefficient at 𝜆=461  nm. With an effective absorption path length of 2.8 km, an optimum detection limit of 0.05  Mm−1 (5×10−10  cm−1) was achieved with an averaging time of 84 s. The baseline drift of the developed spectrometer was about ±0.3  Mm−1 over 2.5 h (1𝜎 standard deviation). The performance of the system was evaluated with laboratory-generated monodispersed polystyrene latex (PSL) spheres. The retrieved complex refractive index of PSL agreed well with previously reported values. The relative humidity (RH) dependence of the aerosol extinction coefficient was measured using IBBCEAS. The measured extinction enhancement factor values for 200 nm dry ammonium sulphate particles at different RH were in good agreement with the modeled values. Field performance of the aerosol extinction spectrometer was demonstrated at the Hefei Radiation Observatory site. en
dc.description.sponsorship China Special Fund for Meteorological Research in the Public Interest (GYHY201406039); National Natural Science Foundation of China (NSFC) (41330424); Natural Science Foundation of Anhui Province (1508085J03); Youth Innovation Promotion Association of the Chinese Academy of Sciences (2016383) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Optical Society of America en
dc.rights © 2017, Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. en
dc.subject Aerosol detection en
dc.subject Air pollution monitoring en
dc.subject Spectrometers and spectroscopic instrumentation en
dc.title Development of an incoherent broad-band cavity-enhanced aerosol extinction spectrometer and its application to measurement of aerosol optical hygroscopicity en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Dean Venables, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: d.venables@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-06-11T09:00:27Z
dc.description.version Accepted Version en
dc.internal.rssid 441156958
dc.contributor.funder National Natural Science Foundation of China en
dc.contributor.funder Natural Science Foundation of Anhui Province en
dc.contributor.funder Youth Innovation Promotion Association of the Chinese Academy of Sciences en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Journal of Applied Optics en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress d.venables@ucc.ie en


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