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KrF-laser-pumped metal vapor lasers
https://konan-u.repo.nii.ac.jp/records/19
https://konan-u.repo.nii.ac.jp/records/19cd1d7363-eec7-41aa-a98c-b863158252f0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
H00007 (31.2 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2015-03-10 | |||||
| タイトル | ||||||
| タイトル | KrF-laser-pumped metal vapor lasers | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ | doctoral thesis | |||||
| アクセス権 | ||||||
| アクセス権 | open access | |||||
| その他（別言語等）のタイトル | ||||||
| その他のタイトル | KrFレーザ励起金属蒸気レーザ | |||||
| 言語 | ja | |||||
| 著者 |
吉田, 秀司
× 吉田, 秀司 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | New laser oscillations of iron and tantalum atoms have been observed for the first time by author with the aid of optically pumped Fe and Ta vapor plasmas, respectively. The vapor plasma is produced by irradiating a metal plate with a pulsed Nd:YAG laser, which is optically pumped by a KrF excimer laser.An Fe vapor laser oscillation has been first observed on three lines in an ultraviolet region (299.951, 303.164 and 304.043 nm), and on two lines in a visible region (532.418 and 562.455 nm). Output characteristics of the ultraviolet and visible Fe vapor lasers have been investigated experimentally. The maximum output energies of the ultraviolet and visible Fe lasers are 1.08 μJ/pulse and 135.3 nJ/pulse, respectively. Under optimum lasing conditions, the optical gains at 299.951, 303.164, 304.043, 532.418 and 562.455 nm are 1.53, 1.04, 1.77, 0.66 and 0.41 /cm, respectively.In order to elucidate the oscillation mechanisms of the Fe vapor lasers, a dynamics of the laser-induced Fe vapor plasma has been investigated experimentally. Population densities of Fe atoms, an absolute gas temperature and an electron density have been measured by using the hook method, the Boltzmann plot method and the Saha ionization theory, respectively. On the basis of the experimental results, a clear physical interpretation is given for the output characteristics of the Fe vapor lasers. A set of rate equations for the formations of the laser upper and lower states is calculated, and the oscillation mechanisms of the Fe vapor laser are elucidated.A Ta vapor laser oscillation has also been first observed on five lines in an ultraviolet region (292.519, 322.732, 328.087, 330.438 and 351.361 nm). Output characteristics of the Ta vapor lasers have been investigated experimentally, and the maximum output energy of 160 nJ/pulse is obtained. Under an optimum lasing condition, the optical gains at 292.519, 322.732, 328.087, 330.438 and 351.361 nm are 0.35, 0.24, 0.09, 0.09 and 0.20 /cm, respectively. | |||||
| 学位名 | ||||||
| 学位名 | 博士(理学) | |||||
| 学位授与機関 | ||||||
| 学位授与機関名 | 甲南大学 | |||||
| 学位授与年度 | ||||||
| 内容記述 | 平成6年度(1995年度) | |||||
| 学位授与年月日 | ||||||
| 学位授与年月日 | 1995-03-07 | |||||
| 学位授与番号 | ||||||
| 学位授与番号 | 乙第9号 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.11501/3102419 | |||||
| フォーマット | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | application/pdf | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
