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Progress in Chemistry 1996, Vol. 8 Issue (02): 129- Previous Articles   Next Articles

• Review •

Photocheistry of Photoreaction Intermediates and Upper Excited States——Application of Two-Step Two-Laser Technique

Fan Meigong；Yu Lianhe   

  1. (Institute of Photographic Chemistry,Chinese Academy of Sciences, Beijing 100101, China)
  • Received: Revised: Online: Published:
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Photochemistry of photo reaction intermediates and upper excited states is a new research area, which has been developed since them iddle of 1980's. One of the most important method used in the research is two-step two-laser technique. In this review , the emphasisis on the presentation of new concepts and theories, novel reactions and techniques. The following contents are comprised in the present paper: fluorescent and absorption spectra, intramolecular and intermolecular reactions of photo reaction intermediates,photophysics and photochemistry of upper excited triplet states, the application of two-step two-laser technique in high－tech new materials, such as those used for optical information storage.

Key words: photoreaction intermediates, upper excited states, laser flash photolysis, two-step two-laser technique

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