Construction of time-resolved Faraday rotation measurement system and its application to the organic spin polarized materials.

本研究的目的是利用有机分子的光激发三重态来产生和探测有机材料中的大磁化强度。利用激光器、偏振器和放大器研制了时间分辨的法拉第旋转测量系统。此外，在圣路易斯华盛顿大学的林教授实验室，与德国的弗赖堡大学的林教授和Kothe教授合作，对光激发三重态进行了磁共振研究。理论分析表明，大的自旋极化产生在三重态的能级交叉区。

The purpose of the present study is generation and detection of the large magnetization in organic materials by employing the photo-excited triplet states of organic molecule. Time-resolved Faraday rotation measurement system has been developed by using the lasers, polarizers, and amplifiers. Also the magnetic resonance study on the photo-excited triplet state was performed in Prof. Lin's laboratory at Washington University in St. Louis, collaborating with Prof. Lin and Prof. Kothe from Freiburg University in Germany. Theoretical analysis revealed that the large spin polarizations are generated in the level-crossing region of the triplet state.