Investigation of Alkali-Halide Photodissociation by Sub-Doppler Spectroscopy

亚多普勒光谱研究碱卤化物光解

• 批准号: 5412914
• 负责人: Professor Dr. Dieter Zimmermann
• 金额: --
• 依托单位: Institut für Optik und Atomare Physik (IOAP)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2003
• 资助国家: 德国
• 起止时间: 2002-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5412914?language=en
• 关键词: Investigation; Alkali; Halide; Photodissociation; Sub

Within this German-Russian cooperation the photodissociation of alkali-halide molecules will be investigated experimentally by observing the spin-polarisation of the alkali atom. Pulsed tunable radiation in the near UV, provided by a pulsed tunable dye laser and a frequency doubling unit, is used for dissociation. The polarisation of the alkali atom photofragments is detected by means of a cw probe laser beam being scanned near the well-known alkali atom resonance lines. The experimental results give information on the dynamics of the process of photodissociation which plays a key role in physics and chemistry of the atmosphere of the earth and the planets. In addition, the experiments will provide information on up to now unknown interatomic potentials of excited states of these molecules.

在德俄合作中，碱金属卤化物分子的光解离将通过观察碱金属原子的自旋极化进行实验研究。由脉冲可调谐染料激光器和倍频单元提供的近紫外脉冲可调谐辐射用于解离。碱原子照片碎片的偏振通过在众所周知的碱原子共振线附近扫描的连续探测激光束来检测。实验结果提供了有关光解过程动力学的信息，光解过程在地球和行星大气的物理和化学中起着关键作用。此外，这些实验还将提供迄今为止未知的这些分子激发态原子间势的信息。