Optical-feedback cavity-enhanced absorption spectroscopy with an interband cascade laser: application to SO2 trace analysis

Richard, Lucile; Ventrillard, I.; Chau, Guilmin; Jaulin, Kevin; Kerstel, Erik; Romanini, D.

doi:10.1007/s00340-016-6502-0

Cited by 23 publications

(21 citation statements)

References 20 publications

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“…As an example, an OF-CEAS instrument optimized for monitoring exhaled CO at 2.33 µm (4297.7 cm −1 ) offers a 0.2 ppb detection limit for CO over an acquisition time of 20 s [50]. More recently, a few OF-CEAS prototype setups in the MIR were reported based on QCL [51,52] and lately, based on ICLs [53][54][55], presenting an absorption detection limit in the range of 10 − 9 cm −1 Hz −1/2 . This level of sensitivity of OF-CEAS analyzers in the mid-IR results directly from its high signal-to-noise ratio compensating for the lower detectivity of optical detectors at longer wavelengths.…”

Section: Optical Feedback Cavity-enhanced Absorption Spectroscopymentioning

confidence: 99%

Laser spectroscopy for breath analysis: towards clinical implementation

et al. 2018

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Detection and analysis of volatile compounds in exhaled breath represents an attractive tool for monitoring the metabolic status of a patient and disease diagnosis, since it is non-invasive and fast. Numerous studies have already demonstrated the benefit of breath analysis in clinical settings/applications and encouraged multidisciplinary research to reveal new insights regarding the origins, pathways, and pathophysiological roles of breath components. Many breath analysis methods are currently available to help explore these directions, ranging from mass spectrometry to laser-based spectroscopy and sensor arrays. This review presents an update of the current status of optical methods, using near and mid-infrared sources, for clinical breath gas analysis over the last decade and describes recent technological developments and their applications. The review includes: tunable diode laser absorption spectroscopy, cavity ring-down spectroscopy, integrated cavity output spectroscopy, cavity-enhanced absorption spectroscopy, photoacoustic spectroscopy, quartz-enhanced photoacoustic spectroscopy, and optical frequency comb spectroscopy. A SWOT analysis (strengths, weaknesses, opportunities, and threats) is presented that describes the laser-based techniques within the clinical framework of breath research and their appealing features for clinical use.

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Section: Optical Feedback Cavity-enhanced Absorption Spectroscopymentioning

confidence: 99%

Laser spectroscopy for breath analysis: towards clinical implementation

et al. 2018

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“…It has been demonstrated that this technique is compatible with different kinds of semiconductor lasers. Indeed, while OF-CEAS was previously developed in the NIR with distributed feedback telecom diode lasers (Morville et al, 2005;Kassi et al, 2006), it has been demonstrated that it is compatible with extended cavity diode lasers that operate in the visible (Courtillot et al, 2006;Horstjann et al, 2014) and with quantum cascade lasers (Maisons et al, 2010;Gorrotxategi-Carbajo et al, 2013) as well as more recently with interband cascade lasers (Manfred et al, 2015;Richard et al, 2016) in the mid-infrared region.…”

Section: Discussionmentioning

confidence: 99%

“…The performance of the OF-CEAS technique in the NIR led a private company (AP2E, Aix-en-Provence, France) to exploit the patent for commercially available analysers (namely Pro-CEAS). On the other hand, exploiting OF-CEAS in the MIR allows the reaching of sub-ppb levels for several species of interest in trace detection and ppm levels for isotopic ratio measurements (Maisons et al, 2010;Gorrotxategi-Carbajo et al, 2013;Manfred et al, 2016;Richard et al, 2016).…”

Section: Ventrillard Et Al: Comparison Of Of-ceas and Gcmentioning

confidence: 99%

Comparison of optical-feedback cavity-enhanced absorption spectroscopy and gas chromatography for ground-based and airborne measurements of atmospheric CO concentration

et al. 2017

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Abstract. We present the first comparison of carbon monoxide (CO) measurements performed with a portable laser spectrometer that exploits the optical-feedback cavity-enhanced absorption spectroscopy (OF-CEAS) technique, against a high-performance automated gas chromatograph (GC) with a mercuric oxide reduction gas detector (RGD). First, measurements of atmospheric CO mole fraction were continuously collected in a Paris (France) suburb over 1 week. Both instruments showed an excellent agreement within typically 2 ppb (part per billion in volume), fulfilling the World Meteorological Organization (WMO) recommendation for CO inter-laboratory comparison. The compact size and robustness of the OF-CEAS instrument allowed its operation aboard a small aircraft employed for routine tropospheric air analysis over the French Orléans forest area. Direct OF-CEAS real-time CO measurements in tropospheric air were then compared with later analysis of flask samples by the gas chromatograph. Again, a very good agreement was observed. This work establishes that the OF-CEAS laser spectrometer can run unattended at a very high level of sensitivity ( < 1 ppb) and stability without any periodic calibration.

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“…A drastic reduction of the laser emission line width occurs, well below the FP mode width, leading to near-perfect mode injections and allowing the laser frequency to be hopped over successive longitudinal modes of the FP. This technique can be applied to virtually any single-frequency semiconductor laser including DFBLs [40], ECDLs [41], QCLs [42] and ICLs [43].…”

Section: 22mentioning

confidence: 99%