Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy
Distortion of laser-induced fluorescence profiles attributable to optical absorption and saturation broadening was corrected in combination with laser absorption spectroscopy in argon plasma flow. At high probe-laser intensity, saturated absorption profiles were measured to correct probe-laser absor...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2013/198420 |
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| author | S. Nomura T. Kaneko G. Ito K. Komurasaki Y. Arakawa |
| author_facet | S. Nomura T. Kaneko G. Ito K. Komurasaki Y. Arakawa |
| author_sort | S. Nomura |
| collection | DOAJ |
| description | Distortion of laser-induced fluorescence profiles attributable to optical absorption and saturation broadening was corrected in combination with laser absorption spectroscopy in argon plasma flow. At high probe-laser intensity, saturated absorption profiles were measured to correct probe-laser absorption. At low laser intensity, nonsaturated absorption profiles were measured to correct fluorescence reabsorption. Saturation broadening at the measurement point was corrected using a ratio of saturated to non-saturated broadening. Observed LIF broadening and corresponding translational temperature without correction were, respectively, 2.20±0.05 GHz and 2510±100 K and corrected broadening and temperature were, respectively, 1.96±0.07 GHz and 1990±150 K. Although this correction is applicable only at the center of symmetry, the deduced temperature agreed well with that obtained by LAS with Abel inversion. |
| format | Article |
| id | doaj-art-bb2fdc7091f048ea9c761816b143f9e0 |
| institution | DOAJ |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-bb2fdc7091f048ea9c761816b143f9e02025-08-20T03:23:27ZengWileyJournal of Spectroscopy2314-49202314-49392013-01-01201310.1155/2013/198420198420Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption SpectroscopyS. Nomura0T. Kaneko1G. Ito2K. Komurasaki3Y. Arakawa4Department of Advanced Energy, The University of Tokyo, Tokyo 277-0882, JapanDepartment of Aerospace Engineering, The University of Tokyo, Tokyo 113-8656, JapanDepartment of Advanced Energy, The University of Tokyo, Tokyo 277-0882, JapanDepartment of Advanced Energy, The University of Tokyo, Tokyo 277-0882, JapanDepartment of Aerospace Engineering, The University of Tokyo, Tokyo 113-8656, JapanDistortion of laser-induced fluorescence profiles attributable to optical absorption and saturation broadening was corrected in combination with laser absorption spectroscopy in argon plasma flow. At high probe-laser intensity, saturated absorption profiles were measured to correct probe-laser absorption. At low laser intensity, nonsaturated absorption profiles were measured to correct fluorescence reabsorption. Saturation broadening at the measurement point was corrected using a ratio of saturated to non-saturated broadening. Observed LIF broadening and corresponding translational temperature without correction were, respectively, 2.20±0.05 GHz and 2510±100 K and corrected broadening and temperature were, respectively, 1.96±0.07 GHz and 1990±150 K. Although this correction is applicable only at the center of symmetry, the deduced temperature agreed well with that obtained by LAS with Abel inversion.http://dx.doi.org/10.1155/2013/198420 |
| spellingShingle | S. Nomura T. Kaneko G. Ito K. Komurasaki Y. Arakawa Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy Journal of Spectroscopy |
| title | Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy |
| title_full | Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy |
| title_fullStr | Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy |
| title_full_unstemmed | Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy |
| title_short | Diode-Laser Induced Fluorescence Spectroscopy of an Optically Thick Plasma in Combination with Laser Absorption Spectroscopy |
| title_sort | diode laser induced fluorescence spectroscopy of an optically thick plasma in combination with laser absorption spectroscopy |
| url | http://dx.doi.org/10.1155/2013/198420 |
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