Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection
Abstract
Carbon dioxide laser coincidences were investigated by photoacoustic detection at laser lines 10P(28) and 9P(28) with ethene and at 10P(20) and 10P(16) with ammonia. The intensities of coincidences were measured as a function of pressure of a buffer gas (dry air) and pure gas. The intensities of two ammonia coincidences show an inversion with pressure. A method of eliminating all pressure effects other than those of spectral nature from the PA signal was introduced. This enabled deriving the pressure broadening coefficients of the coinciding absorption lines. (C) 1998 Published by Elsevier Science B.V.
Keywords:
photoacoustic detection / CO2-laser / pressure broadening / ethene / ammoniaSource:
Infrared Physics and Technology, 1998, 39, 1, 7-13Funding / projects:
- Ministry of Science of Serbia [Grant No. 02E17]
DOI: 10.1016/S1350-4495(97)00035-2
ISSN: 1350-4495
WoS: 000073849100002
Scopus: 2-s2.0-0031996056
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Institution/Community
VinčaTY - JOUR AU - Radak, Bojan AU - Pastirk, Igor AU - Ristić, Gordana AU - Petkovska, Ljubica T. PY - 1998 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2147 AB - Carbon dioxide laser coincidences were investigated by photoacoustic detection at laser lines 10P(28) and 9P(28) with ethene and at 10P(20) and 10P(16) with ammonia. The intensities of coincidences were measured as a function of pressure of a buffer gas (dry air) and pure gas. The intensities of two ammonia coincidences show an inversion with pressure. A method of eliminating all pressure effects other than those of spectral nature from the PA signal was introduced. This enabled deriving the pressure broadening coefficients of the coinciding absorption lines. (C) 1998 Published by Elsevier Science B.V. T2 - Infrared Physics and Technology T1 - Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection VL - 39 IS - 1 SP - 7 EP - 13 DO - 10.1016/S1350-4495(97)00035-2 ER -
@article{ author = "Radak, Bojan and Pastirk, Igor and Ristić, Gordana and Petkovska, Ljubica T.", year = "1998", abstract = "Carbon dioxide laser coincidences were investigated by photoacoustic detection at laser lines 10P(28) and 9P(28) with ethene and at 10P(20) and 10P(16) with ammonia. The intensities of coincidences were measured as a function of pressure of a buffer gas (dry air) and pure gas. The intensities of two ammonia coincidences show an inversion with pressure. A method of eliminating all pressure effects other than those of spectral nature from the PA signal was introduced. This enabled deriving the pressure broadening coefficients of the coinciding absorption lines. (C) 1998 Published by Elsevier Science B.V.", journal = "Infrared Physics and Technology", title = "Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection", volume = "39", number = "1", pages = "7-13", doi = "10.1016/S1350-4495(97)00035-2" }
Radak, B., Pastirk, I., Ristić, G.,& Petkovska, L. T.. (1998). Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection. in Infrared Physics and Technology, 39(1), 7-13. https://doi.org/10.1016/S1350-4495(97)00035-2
Radak B, Pastirk I, Ristić G, Petkovska LT. Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection. in Infrared Physics and Technology. 1998;39(1):7-13. doi:10.1016/S1350-4495(97)00035-2 .
Radak, Bojan, Pastirk, Igor, Ristić, Gordana, Petkovska, Ljubica T., "Pressure effects on CO2-laser coincidences with ethene and ammonia investigated by photoacoustic detection" in Infrared Physics and Technology, 39, no. 1 (1998):7-13, https://doi.org/10.1016/S1350-4495(97)00035-2 . .