High-sensitivity detection of NO in a flame using a tunable ArF laser

Wodtke, A. M.; Huwel, L.; Schluter, H.; Meijer, Gerard; Andersen, P.; Voges, H.

doi:10.1364/OL.13.000910

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High-sensitivity detection of NO in a flame using a tunable ArF laser

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Wodtke, A. M., Huwel, L., Schluter, H., Meijer, G., Andersen, P., & Voges, H. (1988). High-sensitivity detection of NO in a flame using a tunable ArF laser. Optics Letters, 13(10), 910-912. doi:10.1364/OL.13.000910.

Cite as: https://hdl.handle.net/21.11116/0000-000C-228F-D

Abstract

A tunable, narrow-band ArF laser has been used for laser-induced fluorescence detection of NO in natural abundance in a flame experiment. P and R branches of the D ²∑ v′ = 0 ← X ²Π_3/2,1/2 v″ = 1 transition were observed probing rotational states between J″ = 19.5 and J″ = 44.5. A single-shot detection limit of 1 part in 10⁶ was found with a monochromator-based, dispersed-fluorescence detection system. In an experimental setup, determination of undispersed laser-induced fluorescence detection limits at or below the 1-part-in-10⁹ range should be possible, because the narrow-band laser can be used to suppress all other sources of contaminating fluorescence even for detection of trace NO. The NO B ²Π v′ = 7 ← X ²Π v″ = 0 transition was also observed in a cell experiment but not in the flame and is reported here.