Analysis of the third-order susceptibilities of triplet excited molecules using nanosecond time-resolved resonance CARS
✍ Scribed by J.-M. Funk; A. Materny
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 300 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0377-0486
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✦ Synopsis
Nanosecond time-resolved resonance CARS spectra of anthracene and 9,10-dichloroanthracene in the lowest excited triplet state are reported. Simultaneous Ðtting of a series of time-resolved CARS spectra to appropriate lineshape equations was used to determine the molecular third-order susceptibility parameters of these electronic excited state molecules unambiguously. The capability of this method to study the resonance behaviour of these parameters is demonstrated by the determination of the sign of the imaginary part I of the Raman resonant CARS susceptibility of triplet anthracene at two di †erent pump laser wavelengths.