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dc.contributor.authorMa, Yufei
Yu, Xin
Yu, Guang
Li, Xudong
Zhang, Jingbo
Chen, Deying
Sun, Rui
Tittel, Frank K.
dc.date.accessioned 2017-05-15T21:11:38Z
dc.date.available 2017-05-15T21:11:38Z
dc.date.issued 2015
dc.identifier.citation Ma, Yufei, Yu, Xin, Yu, Guang, et al.. "Multi-quartz-enhanced photoacoustic spectroscopy." Applied Physics Letters, 107, no. 2 (2015) AIP Publishing LLC: http://dx.doi.org/10.1063/1.4927057.
dc.identifier.urihttps://hdl.handle.net/1911/94268
dc.description.abstract A multi-quartz-enhanced photoacoustic spectroscopy (M-QEPAS) sensor system for trace gas detection is reported. Instead of a single quartz tuning fork (QTF) as used in QEPAS technique, a dual QTF sensor platform was adopted in M-QEPAS to increase the signal strength by the addition of the detected QEPAS signals. Water vapor was selected as the target analyte. M-QEPAS realized a 1.7 times signal enhancement as compared to the QEPAS method for the same operating conditions. A minimum detection limit of 23.9 ppmv was achieved for the M-QEPAS sensor, with a calculated normalized noise equivalent absorption coefficient of 5.95 × 10−8 cm−1W/√Hz. The M-QEPAS sensor performance can be further improved when more QTFs are employed or an acoustic micro-resonator architecture is used.
dc.language.iso eng
dc.publisher AIP Publishing LLC
dc.rights Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.title Multi-quartz-enhanced photoacoustic spectroscopy
dc.type Journal article
dc.citation.journalTitle Applied Physics Letters
dc.citation.volumeNumber 107
dc.citation.issueNumber 2
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1063/1.4927057
dc.type.publication publisher version
dc.citation.articleNumber 021106


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