Two-Photon Ionization of Cesium and Sodium Vapors
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概要
- 論文の詳細を見る
The breakdown and the growth of plasma of cesium and sodium vapors by an intense laser beam are investigated. The minimum intensity which is observable by a double probe is found to be inversely proportional to the root of the neutral atom density for either vapor. This result confirms that the two-photon ionization is a dominant process in the stage of breakdown. Further increase of the intensity of laser beam leads to a steep rise of the plasma density proportional to the square of the intensity followed by a slow rise and then the second steep rise. The first steep rise is explained by the two-photon ionization process too. The electron temperatures are estimated to be about 10^4°K under the condition of the present work, by the probe and optical methods.
- 社団法人日本物理学会の論文
- 1970-10-05
著者
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Sawada Katsutoshi
Department Of Electronics Nagoya University
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KISHI Kumeyo
Department of Electronics, Nagoya University
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OKUDA Takayoshi
Department of Electronics, Nagoya University
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MATSUOKA Yoshiharu
Department of Physics, Meijo University
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Kishi Kumeyo
Department Of Electronics Nagoya University
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Okuda Takayoshi
Department Of Electrical Engineering Faculty Of Engineering Nagoya University
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Matsuoka Yoshiharu
Department Of Materials Science And Engineering Meijo University
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Matsuoka Yoshiharu
Department Of Physics Meijo University
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