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Sulfur Dioxide (SO2)

DETECT SO2 IN REAL TIME & IN SITU WITH UP TO PPB PRECISION

Sulfur Dioxide

Major Applications

nanoplus lasers detect sulfur dioxide detection in numerous applications, such as in emission control.

Tunable diode laser spectroscopy allows measuring SOwith 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.

WHICH ABSORPTION LINE IS THE PERFECT ONE FOR YOUR APPLICATION?

Typical Wavelengths

Select your target wavelength

nanoplus offers various wavelengths to target the vibrational-rotational bands of sulfur dioxide . Select the target wavelength that fits your application best.

The literature recommends several options. They are illustrated in the graphic on the right, which shows the relative intensities of the possible absorption lines. To define the most suitable SO2 wavelength for your application, you may have a look at our literature recommendations below or refer to the HITRAN database from the Smithsonian Institute.

We present the most common Distributed Feedback lasers for SO2 detection below. Learn more about their specifications.

Factors which you should consider in your setup

Above wavelengths as well as further customized wavelengths for sulfur dioxide detection 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!

Read More

Further Reading

Applications & Papers

We compiled several papers on water vapour detection based on tunable diode laser absorption spectroscopy. Refer to below literature list to read more or select your paper by application.

Applications
Papers & Links
Applications
SO2
Emission control of flue gases: SO2

SO2 causes acid rain when it reacts with nitrogen oxide. It is generated during fuel combustion at power plants and other industrial facilities. For this reason SO2 emissions are restricted and need to be monitored.

[ 178 , 67 ]
SO2
Control of toxic substances: SO2

SO2 is a highly reactive and toxic gas which leads to severe respiratory disorders, hence its emissions have to be controlled.

Papers & Links
# 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, 10, 2010, pp. 2492-2510,
# 67 New Opportunities in Mid-Infrared Emission Control
P. Geiser, Sensors, 2015, pp. 22724-22736.,
# 75 Interband cascade laser sources in the mid-infrared for green photonics
J. Koeth, M. von Edlinger, J. Scheuermann, S. Becker, L. Nähle, M. Fischer, R. Weih, M. Kamp, S. Höfling, , Novel In-Plane Semiconductor Lasers , XV, 9767, 10th March 2016, 976712,
# 87 Optical‑feedback cavity‑enhanced absorption spectroscopy with an interband cascade laser: application to SO2 trace analysis
L. Richard, I. Ventrillard, G. Chau, K. Jaulin, E. Kerstel, D. Romanini , Appl. Phys. B, 2016, 122:247.,
# 100 Multiheterodyne spectroscopy using interband cascade lasers
L. A. Sterczewski, J. Westberg, C. L. Patrick, C. S. Kim, M. Kim, C. L. Canedy, W. W. Bewley, C. D. Merritt, I. Vurgaftman, J. R. Meyer and G. Wysocki, Opt. Eng., 57(1), Januar 2018, 011014,
# 101 Single-mode interband cascade laser multiemitter structure for two-wavelength absorption spectroscopy;
Scheuermann, R. Weih, S. Becker, M. Fischer, J. Koeth, S. Höfling, Opt. Eng., 57 (1), September 2017, 011008,
# 178 Quartz-Enhanced Photoacoustic Sensors for Detection of Eight Air Pollutants
R. De Palo, A. Elefante, G. Biagi, F. Paciolla, R. Weih, V. Villada, A. Zifarelli, M. Giglio, A. Sampaolo, V. Spagnolo, P. Patimisco, Adv. Phot. Res., Vo. 4, Iss. 6, 2023,
Do you have further questions?

Need help?

Contact us

If you have any questions on above wavelengths or require advice on making your choice, our experts will assist you. Just email us or give us a call.