Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics
Abstract
Measuring the vibrational-to-translational relaxation time tau(V-T) in gases is one of the applications of pulsed photoacoustic spectroscopy. Unfortunately, the spatial profile of the laser beam can significantly influence the accuracy of these measurements. Namely, minor changes in the spatial profile of the laser beam cause significant errors in the tau(V-T) measuring. We present a method for simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time. It is based on the temporal shape of the photoacoustic pulse and utilizes a mathematical algorithm developed for photoacoustic tomography.
Source:
Applied Physics. B: Lasers and Optics, 2007, 88, 2, 309-315
DOI: 10.1007/s00340-007-2697-4
ISSN: 0946-2171
WoS: 000248054900028
Scopus: 2-s2.0-34547212340
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Institution/Community
VinčaTY - JOUR AU - Rabasović, Mihailo D. AU - Krneta-Nikolić, Jelena D. AU - Markushev, Dragan D. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3217 AB - Measuring the vibrational-to-translational relaxation time tau(V-T) in gases is one of the applications of pulsed photoacoustic spectroscopy. Unfortunately, the spatial profile of the laser beam can significantly influence the accuracy of these measurements. Namely, minor changes in the spatial profile of the laser beam cause significant errors in the tau(V-T) measuring. We present a method for simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time. It is based on the temporal shape of the photoacoustic pulse and utilizes a mathematical algorithm developed for photoacoustic tomography. T2 - Applied Physics. B: Lasers and Optics T1 - Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics VL - 88 IS - 2 SP - 309 EP - 315 DO - 10.1007/s00340-007-2697-4 ER -
@article{ author = "Rabasović, Mihailo D. and Krneta-Nikolić, Jelena D. and Markushev, Dragan D.", year = "2007", abstract = "Measuring the vibrational-to-translational relaxation time tau(V-T) in gases is one of the applications of pulsed photoacoustic spectroscopy. Unfortunately, the spatial profile of the laser beam can significantly influence the accuracy of these measurements. Namely, minor changes in the spatial profile of the laser beam cause significant errors in the tau(V-T) measuring. We present a method for simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time. It is based on the temporal shape of the photoacoustic pulse and utilizes a mathematical algorithm developed for photoacoustic tomography.", journal = "Applied Physics. B: Lasers and Optics", title = "Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics", volume = "88", number = "2", pages = "309-315", doi = "10.1007/s00340-007-2697-4" }
Rabasović, M. D., Krneta-Nikolić, J. D.,& Markushev, D. D.. (2007). Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics. in Applied Physics. B: Lasers and Optics, 88(2), 309-315. https://doi.org/10.1007/s00340-007-2697-4
Rabasović MD, Krneta-Nikolić JD, Markushev DD. Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics. in Applied Physics. B: Lasers and Optics. 2007;88(2):309-315. doi:10.1007/s00340-007-2697-4 .
Rabasović, Mihailo D., Krneta-Nikolić, Jelena D., Markushev, Dragan D., "Simultaneous determination of the spatial profile of the laser beam and vibrational-to-translational relaxation time by pulsed photoacoustics" in Applied Physics. B: Lasers and Optics, 88, no. 2 (2007):309-315, https://doi.org/10.1007/s00340-007-2697-4 . .