Title of article
Two-photon absorption spectrum of poly(fluorene)
Author/Authors
Najechalski، نويسنده , , Pawel and Morel، نويسنده , , Yannick and Stéphan، نويسنده , , Olivier and Baldeck، نويسنده , , Patrice L.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2001
Pages
5
From page
44
To page
48
Abstract
We report here on the two-photon absorption (TPA) properties of poly(fluorene). The two-photon absorption spectrum has been characterized in the range 550–680 nm. A resonance at λ=625 nm is observed with a cross-section of 2×10−46 cm4 s/photon-molecule. This large value is interpreted as the result of dipolar coupling between 12 monomer units, i.e. the polymer coherence length. In the framework of a three-level model, the TPA transition is related to the second excited state 2Ag lying at 6200 cm−1 above the lowest excited state 1Bu.
Journal title
Chemical Physics Letters
Serial Year
2001
Journal title
Chemical Physics Letters
Record number
1776856
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