Long-path monitoring of NO2 with a 635 nm diode laser using frequency-modulation spectroscopy
(2005) In Applied Optics 44(24). p.5148-5151- Abstract
- In situ monitoring of traffic-generated nitrogen dioxide (NO2) emissions using long-path absorption spectroscopy is reported. High-sensitivity detection of NO2 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 NO2 absorption lines. A detection limit of 10 mu g/m(3) for NO2 at atmospheric pressure using a 160 m absorption path is demonstrated. Continuous monitoring of NO2 over a road intersection at peak traffic is performed.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/227068
- author
- Somesfalean, Gabriel LU ; Alnis, J ; Gustafsson, U ; Edner, Hans LU and Svanberg, Sune LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 44
- issue
- 24
- pages
- 5148 - 5151
- publisher
- Optical Society of America
- external identifiers
-
- wos:000231292500020
- scopus:25444524311
- ISSN
- 2155-3165
- language
- English
- LU publication?
- yes
- id
- c007a76b-89d3-4087-a777-35e94b92b9ee (old id 227068)
- alternative location
- http://www.opticsinfobase.org.ludwig.lub.lu.se/DirectPDFAccess/DC4AEE3E-BDB9-137E-C018946E6F05B086_84890.pdf?da=1&id=84890&seq=0&CFID=4168538&CFTOKEN=87074219
- date added to LUP
- 2016-04-01 11:37:08
- date last changed
- 2022-04-12 22:46:08
@article{c007a76b-89d3-4087-a777-35e94b92b9ee, abstract = {{In situ monitoring of traffic-generated nitrogen dioxide (NO2) emissions using long-path absorption spectroscopy is reported. High-sensitivity detection of NO2 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 NO2 absorption lines. A detection limit of 10 mu g/m(3) for NO2 at atmospheric pressure using a 160 m absorption path is demonstrated. Continuous monitoring of NO2 over a road intersection at peak traffic is performed.}}, author = {{Somesfalean, Gabriel and Alnis, J and Gustafsson, U and Edner, Hans and Svanberg, Sune}}, issn = {{2155-3165}}, language = {{eng}}, number = {{24}}, pages = {{5148--5151}}, publisher = {{Optical Society of America}}, series = {{Applied Optics}}, title = {{Long-path monitoring of NO2 with a 635 nm diode laser using frequency-modulation spectroscopy}}, url = {{https://lup.lub.lu.se/search/files/2563283/2365869.pdf}}, volume = {{44}}, year = {{2005}}, }