Title of article
The role of amplified spontaneous emission in the ultrafast relaxation dynamics of polymer films
Author/Authors
Stagira، نويسنده , , S. and Nisoli، نويسنده , , Michele M. and Cerullo، نويسنده , , G. and Zavelani–Rossi، نويسنده , , M. and De Silvestri، نويسنده , , S. and Lanzani، نويسنده , , G. and Graupner، نويسنده , , W. and Leising، نويسنده , , G.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
6
From page
205
To page
210
Abstract
We show that gain relaxation dynamics in thin films of methyl-substituted poly-(para-phenylene)-type ladder polymer, investigated by femtosecond pump–probe spectroscopy under high excitation fluence, is affected by amplified spontaneous emission (ASE), which provides for an efficient excited state population depletion mechanism. The ASE influence on the photoluminescence spectral narrowing is also investigated. A general model which accounts for both excited state population dynamics and photoluminescence spectral evolution is presented.
Journal title
Chemical Physics Letters
Serial Year
1998
Journal title
Chemical Physics Letters
Record number
1773842
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