Abstract

By using the differential optical absorption technique combined with Fourier transformation, we have achieved a good separation of ammonia from sulfur dioxide in the wavelength range 207 to 217 nm. Measurements show that, with a pathlength of two decimeters and a measuring time of one minute, we can measure less than 1.32 mg/m³ [1.9 ppm (volume)] of ammonia with a standard deviation of 0.46 mg/m³ [0.66 ppm (volume)] with interference from 408.73 mg/m³ [156 ppm (volume)] sulfur dioxide.

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Ann Carine Vandaele and Michel Carleer
Appl. Opt. 38(12) 2630-2639 (1999)

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Highly range-resolved ammonia detection using near-field picosecond differential absorption lidar

Billy Kaldvee, Christian Brackmann, Marcus Aldén, and Joakim Bood
Opt. Express 20(18) 20688-20697 (2012)

Combined temperature and strain measurement with a dispersive optical fiber Fourier-transform spectrometer

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Line-pair selections for remote sensing of atmospheric ammonia by use of a coherent CO₂ differential absorption lidar system

Yanzeng Zhao
Appl. Opt. 39(6) 997-1007 (2000)