Nitrogen Oxides Detection (NOx)
Application areas of laser-based nitrogen oxide detection



nanoplus lasers for nitrogen oxide detection are used for various applications including:
- Environment: Emission control
- Health: Breath gas analysis
- Health: Monitoring of medical gas
Tunable diode laser spectroscopy allows measuring NOx with up to ppb precision in real time and in situ. Providing long-term stability and requiring little maintenance, nanoplus lasers are suitable for operation in harsh environments.
Standard wavelengths for nitrogen oxide detection
nanoplus offers various wavelengths to target the vibrational-rotational bands of nitrogen oxides. Literature recommends the following wavelengths for nitrogen oxides detection:
Select your wavelength for nitrogen oxide detection
Above wavelengths as well as further customized wavelengths for the detection of nitrogen oxides are available from nanoplus.
When you choose your wavelength, you have to consider your product set up, environment and nature of the measurement.
These factors influence the optimum wavelength for your application. Do have a look at the Hitran Database to further evaluate your choice of wavelengths. Our application experts are equally happy to discuss with you the most suitable wavelength for your application.
Let us know the wavelength you require with an accuracy of 0.1 nm!
Related information for laser-based nitrogen oxide detection
Specifications & Mountings
Applications
Papers & Links
The following tables analyse the typical specifications of the standard wavelengths for NOx detection.
electro-optical properties of 1814.0 nm DFB laser diode | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 1814.0 | ||
absorption line strength | S | cm / mol | ∼ 5 x 10-23 | ||
output power | pout | mW | 5 | ||
threshold current | lth | mA | 20 | 35 | 65 |
current tuning coefficient | cT | nm / mA | 0.008 | 0.02 | 0.03 |
temperature tuning coefficient | cI | nm / K | 0.07 | 0.1 | 0.14 |
mode hop free tuning range | Δλ | nm | +/- 0.5 |
electro-optical properties of 2670.0 nm DFB laser diode | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 2670.0 | ||
absorption line strength | S | cm / mol | ∼ 4 x 10-22 | ||
output power | pout | mW | 2 | ||
threshold current | lth | mA | 30 | 50 | 80 |
current tuning coefficient | cT | nm / mA | 0.01 | 0.02 | 0.05 |
temperature tuning coefficient | cI | nm / K | 0.15 | 0.2 | 0.28 |
mode hop free tuning range | Δλ | nm | +/- 0.5 |
electro-optical properties of 2860.0 nm DFB laser diode | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 2860.0 | ||
absorption line strength | S | cm / mol | ∼ 5 x 10-20 | ||
output power | pout | mW | 2 | ||
threshold current | lth | mA | 30 | 50 | 80 |
current tuning coefficient | cT | nm / mA | 0.01 | 0.02 | 0.05 |
temperature tuning coefficient | cI | nm / K | 0.15 | 0.2 | 0.28 |
mode hop free tuning range | Δλ | nm | +/- 0.5 |
electro-optical properties of 3420.0 nm DFB interband cascade laser | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 3420.0 | ||
absorption line strength | S | cm / mol | ∼ 7 x 10-21 | ||
output power | pout | mW | > 5 | ||
threshold current | lth | mA | 20 | 30 | 50 |
current tuning coefficient | cT | nm / mA | 0.10 | ||
temperature tuning coefficient | cI | nm / K | 0.35 | ||
mode hop free tuning range | Δλ | nm | +/- 0.5 |
electro-optical properties of 4524.0 nm DFB interband cascade laser | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 4524.0 | ||
absorption line strength | S | cm / mol | ∼ 1 x 10-18 | ||
output power | pout | mW | > 3 | ||
threshold current | lth | mA | 30 | 40 | 60 |
current tuning coefficient | cT | nm / mA | 0.14 | ||
temperature tuning coefficient | cI | nm / K | 0.45 | ||
mode hop free tuning range | Δλ | nm | +/- 0.5 |
electro-optical properties of 5255.0 nm DFB interband cascade laser | symbol | unit | minimum | typical | maximum |
---|---|---|---|---|---|
standard wavelength | λ | nm | 5255.0 | ||
absorption line strength | S | cm / mol | ∼ 3 x 10-20 | ||
output power | pout | mW | > 2 | ||
threshold current | lth | mA | 40 | 50 | 70 |
current tuning coefficient | cT | nm / mA | 0.15 | ||
temperature tuning coefficient | cI | nm / K | 0.50 | ||
mode hop free tuning range | Δλ | nm | +/- 0.5 |
mounting options / technical drawings | wavelength | TEC | cap with window | AR cap with AR window | fiber | heatsink | collimation | |
---|---|---|---|---|---|---|---|---|
TO5.6 | 760 nm - 3000 nm | NA | ✔ | NA | NA | NA | NA | |
TO5 | 760 nm - 3000 nm | ✔ | NA | ✔ | NA | ✔ | ✔ | |
TO66 | 3000 nm - 6000 nm | ✔ | NA | ✔ | NA | ✔ | ✔ | |
c-mount | 760 nm - 3000 nm | NA | NA | NA | NA | NA | NA | |
SM-BTF | 760 nm - 2360 nm | ✔ | NA | NA | single mode | NA | NA | |
PM-BTF | 1064 nm - 2050 nm | ✔ | NA | NA | polarization maintaining | NA | NA |
Please find below a number of application samples.
Emission control of flue gases: NOx
NOx is produced during fuel combustion at power plants and other industrial facilities. When it reacts with SO2 it causes acid rain. For this reason NOx and SO2 emissions are restricted and need to be monitored. [67]
Please find below a selection of related papers from our literature list.
Let us know if you published a paper with our lasers. We will be happy to include it in our literature list.
#9 DFB Lasers Between 760 nm and 16 µm for Sensing Applications;
W. Zeller, L. Naehle, P. Fuchs, F. Gerschuetz, L. Hildebrandt, J. Koeth, Sensors 2010, 10, pp. 2492-2510.
#11 Quantum cascade laser linewidth investigations for high resolution photoacoustic spectroscopy;
M. Germer, M. Wolff, Appl. Opt. 48, 4, 2009, pp. B80-B86.
#18 Monomode Interband Cascade Lasers at 5.2 µm for Nitric Oxide Sensing;
M. von Edlinger, J. Scheuermann, R. Weih, C. Zimmermann, L. Naehle, M. Fischer, J. Koeth, IEEE Phot. Tech. Lett., 26, 5, 2014, pp. 480-482.
#31 QCL based NO Detection;
M. Wolff, J. Koeth, L. Hildebrandt, P. Fuchs; 16th International Conference on Photoacoustic and Photothermal Phenomena.
#49 Spectroscopic monitoring of NO traces in plants and human breath: applications and perspectives;
S. M. Cristescu, D. Marchenko, J. Mandon, K. Hebelstrup, G. W. Griffith, L. A. J. Mur, F. J. M. Harren, Appl. Phys. B, 109, 3, Nov. 2012, pp. 203-211.
#50 Mid-IR difference frequency laser-based sensors for ambient CH4, CO, and N2O monitoring;
J. J. Scherer, J. B. Paul, H. J. Jost, Marc L. Fischer, Appl. Phys. B, 109, 3, Nov. 2012, pp. 271-277.
#63 Breath Analysis Using Laser Spectroscopic Techniques: Breath Biomarkers, Spectral Fingerprints, and Detection Limits;
C. Wang and P. Sahay, Sensors 2009, 9, 8230-8262.
#67 New Opportunities in Mid-Infrared Emission Control;
P. Geiser, Sensors, 2015, pp. 22724-22736.
# 107 Recent progress in laser‑based trace gas instruments: performance and noise analysis;
J. B. McManus, M. S. Zahniser, D. D. Nelson et. al., Appl. Phys. B, 2015, 119: 203.
#117 Nitric oxide analysis down to ppt levels by optical-feedback cavity-enhanced absorption spectroscopy;
L. Richard, D. Romanini, I. Ventrillard, Sensors, MDPI, Vol. 18, Iss. 7, 2018.
#118 The driver design for N2O gas detection system based on tunable interband cascade laser;
L. Liao, J. Zhang, D. Dong, E3S Web Conf., Vol. 78, 2019, 03002.
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Download data sheets
- nanoplus DFB 1650-1850nm.pdf
- nanoplus DFB 2200-2600nm.pdf
- nanoplus DFB 2600-2900nm.pdf
- nanoplus DFB 2800-4000nm.pdf
- nanoplus DFB 4600-5300nm.pdf
- nanoplus DFB TOP WL 4524 nm.pdf
- nanoplus DFB TOP WL 5263 nm.pdf
- nanoplus TO66.pdf
- nanoplus TO5.pdf
- nanoplus TO56.pdf
- nanoplus c-mount.pdf
- nanoplus BTF-SM.pdf
- nanoplus BTF-PM.pdf
- nanoplus chip on heatspreader.pdf
- nanoplus heatsink.pdf