ICL-based mid-infrared carbon dioxide sensor system for deep-sea natural gas hydrate exploration

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dc.citation.firstpage5598en_US
dc.citation.issueNumber4en_US
dc.citation.journalTitleOptics Expressen_US
dc.citation.lastpage5609en_US
dc.citation.volumeNumber27en_US
dc.contributor.authorLiu, Zhiweien_US
dc.contributor.authorZheng, Chuantaoen_US
dc.contributor.authorChen, Chenen_US
dc.contributor.authorLi, Yafeien_US
dc.contributor.authorXie, Hongtaoen_US
dc.contributor.authorRen, Qiangen_US
dc.contributor.authorWang, Yidingen_US
dc.contributor.authorTittel, Frank K.en_US
dc.date.accessioned2019-12-12T17:25:35Zen_US
dc.date.available2019-12-12T17:25:35Zen_US
dc.date.issued2019en_US
dc.description.abstractFor deep-sea natural gas hydrate exploration, highly sensitive detection of the dissolved gas in seawater near the seabed is significant because it requires the sensor system to be small in size, low in power consumption, and high in sensitivity. A mid-infrared sensor system was developed to detect dissolved carbon dioxide (CO2) in sea-water, while employing a 4319 nm continuous-wave interband cascade laser (ICL) and a multi-pass gas cell (MPGC) with a 29.8 m optical path length. A compact rectilinear optical structure was proposed by using the free-space-emitting ICL and tunable laser absorption spectroscopy (TLAS). This leads to a minimized sensor size and a simple optical alignment for deep-sea operation. A strong CO2 absorption line, located at 2315.19 cm−1 and a weak 2315.28 cm−1 line and at a low pressure of 40 Torr, was targeted for low- and high-concentration CO2 detection within a concentration range of 0-1000 parts per billion by volume (ppbv) and 0-40 parts per million by volume (ppmv), respectively. The limit of detection (LoD) was assessed to be 0.72 ppbv at an averaging time of 2 s, and the response time was measured to be ~30 s at a flow rate of ~180 standard cubic centimeters per minute (sccm). Deployment of the CO2 sensor combined with a gas-liquid separator was carried out for the CO2 detection in the gas extracted from water, which validated the reported sensor system’s potential application for deep-sea natural gas hydrate exploration.en_US
dc.identifier.citationLiu, Zhiwei, Zheng, Chuantao, Chen, Chen, et al.. "ICL-based mid-infrared carbon dioxide sensor system for deep-sea natural gas hydrate exploration." <i>Optics Express,</i> 27, no. 4 (2019) Optical Society of America: 5598-5609. https://doi.org/10.1364/OE.27.005598.en_US
dc.identifier.digitaloe-27-4-5598en_US
dc.identifier.doihttps://doi.org/10.1364/OE.27.005598en_US
dc.identifier.urihttps://hdl.handle.net/1911/107883en_US
dc.language.isoengen_US
dc.publisherOptical Society of Americaen_US
dc.rights© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreementen_US
dc.rights.urihttps://www.osapublishing.org/library/license_v1.cfm#VOR-OAen_US
dc.titleICL-based mid-infrared carbon dioxide sensor system for deep-sea natural gas hydrate explorationen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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