| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Ultracold Neutral Plasma Produced by One-Color Two-Photon Ionization in Supersonic Nitric Oxide Molecular Beam |
| LI Hui1,2, SHI Zhe1,2, LIU Jin-Bo2, GUO Jing-Wei2**, ZHOU Can-Hua, CAI Hong-Xing 1, CAI Xiang-Long1,2 |
1Science School, Changchun University of Science and Technology, Changchun 130022
2Key Laboratory of Chemical Laser, Dalian Institute of Chemical Physics, Dalian 116023
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| Cite this article: |
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LI Hui, SHI Zhe, LIU Jin-Bo et al 2013 Chin. Phys. Lett. 30 125201 |
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Abstract Nitric oxide (NO) is cooled to 1 K in a seeded Ar supersonic molecular beam. NO molecules are ionized by one-color two-photon resonant enhanced multiphoton ionization (REMPI) process to form an ultracold plasma. The density of the ionized molecules in the illuminated volume approaches to 1.5 × 1013 cm?3. Prompt electrons, plasma electrons and intact NO+ ions are produced during this process. Experimental results confirm that the lifetime of this ultracold plasma is longer than 18.3 μs. This is the first report of NO ultracold plasma with significant lifetime produced by one-color two-photon REMPI process.
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Received: 16 September 2013
Published: 13 December 2013
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| PACS: |
52.55.Dy
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(General theory and basic studies of plasma lifetime, particle and heat loss, energy balance, field structure, etc.)
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33.80.Gj
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(Diffuse spectra; predissociation, photodissociation)
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34.80.Lx
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(Recombination, attachment, and positronium formation)
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