Consequences of initial condition analysis for the interpretation of transient grating observations

✍ Scribed by V.M. Kenkre; D. Schmid

• Publisher: Elsevier Science
• Year: 1987
• Tongue: English
• Weight: 497 KB
• Volume: 140
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(87)80450-5

✦ Synopsis

On the basis of a recent theory, we present a detailed analysis of initial state consequences on transient grating (and Ronchi ruling) signals. We show explicitly that the required changes in the interpretation of data, while substantial in principle, are of no practical importance in experiments reported so far. For instance, the interpreted mean-free-path of Frenkel excitons in molecular crystals remains unaffected for all experiments except one at 1.8 K in anthracene, for which the uncertainty factor is 2 under the worst of conditions. We also present a revised table of coherence lengths and mean-free-paths updated from our previous work.