Optical birefringence induced by two-photon absorption in polythiophene bearing an azochromophore

We carried out experiments of induced birefringence via two-photon absorption in spin-coated films of the conjugated polymer poly[2-[ethyl-[4-(4-nitro-phenylazo)-phenyl]-amino]-ethane (3-thienyl)ethanoate], PAzT, at 680 and 775nm. This process allows recording in the bulk because of the spatial conf...

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Veröffentlicht in:	Polymer (Guilford) 2008-03, Vol.49 (6), p.1562-1566
Hauptverfasser:	Correa, D.S., Cardoso, M.R., Gonçalves, V.C., Balogh, D.T., De Boni, L., Mendonça, C.R.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Birefringence Exact sciences and technology Physicochemistry of polymers Polymers and radiations Properties and characterization Trans–cis isomerization Two-photon absorption
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