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| HAL : hal-00117093, version 1 |
| arXiv : physics/0611298 |
| DOI : 10.1016/j.cplett.2005.05.036 |
| Fiche détaillée |  Récupérer au format |
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| Chemical Physics Letters 409 (2005) 310-314 |
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| Cation-like Doppler shifts from a neutral molecule in an electrical discharge. |
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| Hervé Herbin 1Robert Farrenq 1 |
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| (30/06/2005) |
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| Velocity-modulation Fourier transform emission spectra from a N_2O/He discharge plasma recorded between 1 and 5.5 µm are described. Surprisingly, they show Doppler-shifted lines for the E ^2 \Sigma ^+ - D ^2 \Sigma ^+ , C ^2 \Pi - A ^2 \Sigma ^+ , and D ^2 \Sigma ^+ - A ^2 \Sigma ^+ Rydberg-Rydberg rovibronic transitions of the nitric oxide neutral molecule. These polarity-dependent Doppler-shifts are those of positively charged particles. Vibration-rotation lines of NO and transitions from other neutral molecules like N_2 are also present in the spectra with comparable intensities and remain unshifted. Experimental investigations and possible explanations are discussed. |
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| 1 : | Laboratoire de Photophysique Moléculaire (PPM) |
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CNRS : UPR3361 – Université Paris XI - Paris Sud |
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| Domaine | : | Physique/Physique/Chimie-Physique Physique/Physique/Optique |
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| Doppler shifts – collision – ion-neutral – spectroscopy – high resolution – velocity modulation – Fourier transform spectroscopy – selective spectroscopy – NO – Rydberg |
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| Liste des fichiers attachés à ce document : | |||||
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| hal-00117093, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00117093 | |
| oai:hal.archives-ouvertes.fr:hal-00117093 | |
| Contributeur : Nathalie Picqué | |
| Soumis le : Jeudi 30 Novembre 2006, 09:06:58 | |
| Dernière modification le : Jeudi 30 Novembre 2006, 10:05:49 | |
