Absorption linewidth measurement of reactive molecular electrinic states by nonlinear optical spectroscopy.

通过非线性光谱法测量反应分子电子态的吸收线宽。

• 批准号: 13640520
• 负责人: KOBAYASHI Tohru
• 金额: $ 1.92万
• 依托单位: The Institute of Physical and Chemical Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13640520/
• 关键词: pulse amplification; high resolution laser; second harmonic; linewidth; molecular dynamics; ablation; 狭帯域光源; パルス光増幅; リュードベリ電子状態; 解離性電子状態; レーザーアブレーション; 4光波混合法

We have produced high resolution UV light of 200MHz linewidth by a pulse anplification of the output of a CW Ti : Sapphire laser with a XeCl excimer laser conbined with a second harmonic crystal. The linewidth is only one fifth of the commercial pulsed dye laser and it will be highly effective for the precise linewidth measurement of absorption spectra.By using this UV light, we have measured Doppler linewidth of the absorption spectra of SiO^+ produced by laser ablation under oxygen atmosphere in order to investigate translational motion of ion in expanding ablation plasma. From the analysis, we have reproduced oscillation of ablation plasma which was expected from theoretical calculation.We are going to use this system for the spectroscopic study of reactive electronic states.

我们用XeCl准分子激光器与倍频晶体相结合，对连续钛宝石激光器的输出进行脉冲放大，产生了线宽为200MHz的高分辨率紫外光。利用这种紫外光，我们测量了氧气氛下激光烧蚀SiO^+离子产生的吸收光谱的多普勒线宽，以研究离子在膨胀烧蚀等离子体中的平移运动。从分析中，我们再现了理论计算所预期的烧蚀等离子体振荡，我们将利用该系统对反应电子态进行光谱研究。

项目成果

T.Mogi, Y.Fukuyama, T.Kobayashi, I.Tanihata, K.Uehara, Y.Matsuo: "Translational motion of SiO^+ produced by laser ablation"Applied Surface Science. 197-198. 202-206 (2002)

T.Mogi、Y.Fukuyama、T.Kobayashi、I.Tanihata、K.Uehara、Y.Matsuo：“激光烧蚀产生的 SiO^ 的平移运动”应用表面科学。

T.Mogi: "Translational Temperature of SiO^+ Produced by Laser Ablation"Applied Surface Science. (accepted for publication).

T.Mogi：“激光烧蚀产生的 SiO^ 的平移温度”应用表面科学。

T. Mogi, Y. Fukuyama, T. Kobayashi, I.Tanihata, K. Uehara, and Y. Matsuo: "Translational motion of SiO^+ produced by laser ablation"Applied Surface Science. 197-198. 202-206 (2002)

T. Mogi、Y. Fukuyama、T. Kobayashi、I.Tanihata、K. Uehara 和 Y. Matsuo：“激光烧蚀产生的 SiO^ 的平移运动”应用表面科学。