410-nm diode laser cavity ring-down spectroscopy for trace detection of NO2

Mazurenka, Mikhail; Fawcett, Beth L.; Elks, John M. F.; Shallcross, Dudley E.; Orr-Ewing, Andrew J.

doi:10.1016/s0009-2614(02)01652-4

Cited by 57 publications

(44 citation statements)

References 29 publications

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“…During the last decade cavity ring-down spectroscopy (CRDS) and its related forms cavity enhanced absorption spectroscopy (CEAS) and cavity attenuated phase shift spectroscopy (CAPS) have become powerful techniques to detect atmospheric trace gases (Ball and Jones, 2003;Brown, 2003) and have also been applied to NO 2 detection. A pulsed laser system , continuous wave laser diodes (Mazurenka et al, 2003;Kasyutich et al, 2003;Wada and Orr-Ewing, 2005;Kasyutich et al, 2006;Courtillot et al, 2006), light emitting diodes (LEDs) (Kebabian et al, 2005;Langridge et al, 2006;Gherman et al, 2008) and a xenon short-arc lamp (Venables et al, 2006) have been used as light sources.…”

Section: Intercomparison Saphirmentioning

confidence: 99%

Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Fuchs

Ball

Bohn³

et al. 2010

Atmos. Meas. Tech.

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Abstract. NO 2 concentrations were measured by various instruments during the NO3Comp campaign at the atmosphere simulation chamber SAPHIR at Forschungszentrum Jülich, Germany, in June 2007. Analytical methods included photolytic conversion with chemiluminescence (PC-CLD), broadband cavity ring-down spectroscopy (BBCRDS), pulsed cavity ring-down spectroscopy (CRDS), incoherent broadband cavity-enhanced absorption spectroscopy (IBBCEAS), and laser-induced fluorescence (LIF). All broadband absorption spectrometers were optimized for the detection of the main target species of the campaign, NO 3 , but were also capable of detecting NO 2 simultaneously with reduced sensitivity. NO 2 mixing ratios in the chamber were within a range characteristic of polluted, urban conditions, with a maximum mixing ratio of approximately 75 ppbv. The overall agreement between measurements of all instruments was excellent. Linear fits of the combined data sets resulted in slopes that differ from unity only within the Correspondence to: S. S. Brown (steven.s.brown@noaa.gov) stated uncertainty of each instrument. Possible interferences from species such as water vapor and ozone were negligible under the experimental conditions.

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Section: Intercomparison Saphirmentioning

confidence: 99%

Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Fuchs

Ball

Bohn³

et al. 2010

Atmos. Meas. Tech.

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“…NO 2 can be well detected with blue violet lasers (0.4-0.42 µm). Such approach was already demonstrated by several laboratories [10][11][12][13][14][15]. Mean value of the absorption cross--section in this region reaches about 6 × 10 −19 cm 2 .…”

Section: Introductionmentioning

confidence: 74%

Application of Quantum Cascade Lasers in Nitric Oxide and Nitrous Oxide Detection

et al. 2011

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Application of quantum cascade lasers in NO and N2O sensor is described. Cavity enhanced absorption spectroscopy was used for this purpose. The detection was performed at vibronic molecular transitions in spectral regions of 5.23-5.29 µm and 4.46-4.54 µm for NO and N2O, respectively. In order to avoid interferences by the gases contained in atmosphere (H2O, CO2) the lines of 5.263 µm for NO and 4.530 µm for N2O were selected. Our two channel sensor is designated for simultaneous detection of both compounds. Each channel consists of single mode quantum cascade laser, optical cavity, and a photodetection module. The lasers were precisely tuned to the wavelength of interest. Optical cavities were built with spherical mirrors of high reflectance. The signals from the cavities outputs were registered with specially developed low noise detection modules.

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“…10 Additionally, NO 2 presents larger absorption lines in the blue region, and it is likely that the sensitivity could be further increased using blue diode lasers in remote absorption measurements. 21,22 Unfortunately, presently available blue diode lasers typically operate on several modes and need to be assembled in external-cavity arrangements that reduce the available output power considerably.…”

Section: Discussionmentioning

confidence: 99%

Long-path monitoring of NO_2 with a 635 nm diode laser using frequency-modulation spectroscopy

et al. 2005

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In situ monitoring of traffic-generated nitrogen dioxide (NO 2 ) emissions using long-path absorption spectroscopy is reported. High-sensitivity detection of NO 2 is achieved by employing two-tone frequencymodulation spectroscopy at a visible absorption band using a tunable high-power diode laser operated around 635 nm. A real-time absorption spectrometer is accomplished by repetitively applying a rectangular current pulse to the diode-laser operating current, allowing detection of isolated NO 2 absorption lines. A detection limit of 10 g͞m 3 for NO 2 at atmospheric pressure using a 160 m absorption path is demonstrated. Continuous monitoring of NO 2 over a road intersection at peak traffic is performed.

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410-nm diode laser cavity ring-down spectroscopy for trace detection of NO2

Cited by 57 publications

References 29 publications

Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Application of Quantum Cascade Lasers in Nitric Oxide and Nitrous Oxide Detection

Long-path monitoring of NO_2 with a 635 nm diode laser using frequency-modulation spectroscopy

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410-nm diode laser cavity ring-down spectroscopy for trace detection of NO2

Cited by 57 publications

References 29 publications

Intercomparison of measurements of NO&lt;sub&gt;2&lt;/sub&gt; concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Intercomparison of measurements of NO&lt;sub&gt;2&lt;/sub&gt; concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Application of Quantum Cascade Lasers in Nitric Oxide and Nitrous Oxide Detection

Long-path monitoring of NO_2 with a 635 nm diode laser using frequency-modulation spectroscopy

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Product

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Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign

Intercomparison of measurements of NO<sub>2</sub> concentrations in the atmosphere simulation chamber SAPHIR during the NO3Comp campaign