Photophysical and photochemical applications of femtosecond time-resolved transient absorption spectroscopy
Year: 2001
Authors: Foggi P., Bussotti L., Neuwahl F.V.R.
Autors Affiliation: LENS, Istituto Nazionale per la Fisica della Materia, Largo E. Fermi 2, 50125 Firenze, Italy; Department of Chemistry, University of Perugia, via Elce di Sotto 8, 06100 Perugia, Italy
Abstract: The aim of this paper is to provide the main pieces of information concerning the application of transient absorption (TA) spectroscopy with sub-picosecond laser pulses. A description of the experimental apparatus and of some detection schemes are included together with the most common mathematical formulas utilized to analyze the signals. The results, recently obtained in our laboratory and presented here, concern the investigation of the excited state dynamics of simple molecular systems. Examples of the measurements of the relaxation processes occurring in the lowest excited states of some aromatic molecules will be discussed in order to show the potentiality of the technique.
Journal/Review: INTERNATIONAL JOURNAL OF PHOTOENERGY
Volume: 3 (2) Pages from: 103 to: 109
More Information: This work has been supported by the Italian Ministero dell\’ Universita e della Ricerca Scientifica e Tecnologica (MURST) and by the commission of the Europeam Communiteis under the contract # HPRI-CT1999-00111. Authors wish to acknowledge the essential contribution of R. Ballerini and H. Hajeb of the machine shop and of M. De Pas and M. Giuntini of the electronic shop of LENS.KeyWords: spectroscopyDOI: 10.1155/S1110662X01000125