Dendritic polyesters for optical applications
2003 (English)In: ORGANIC NANOPHOTONICS / [ed] Charra F; Agranovich VM; Kajzar F, DORDRECHT, NETHERLANDS: SPRINGER , 2003, Vol. 100, 169-176 p.Conference paper (Refereed)
In the protection against lasers, optical power limiting (OPL) is an area of interest. We have explored the effect of using dendritic molecules, based on bis-MPA (2,2-bis(methylol)-propionic acid), as encapsulants; of porphyrine and thiophene dyes having OPL-properties. Preliminary results indicate that the OPL-effect of the porphyrine is increased approximately by a factor 2 if the porphyrine is. decorated with dendritic wedges. This is thought to be a result of isolation of the dye leading to extended lifetimes for the excited states, increasing the probability for multi-photon absorption. For the thiophenes no OPL-effect was observed. This was probably due to the small size of the dendrons; (first generation).
Place, publisher, year, edition, pages
DORDRECHT, NETHERLANDS: SPRINGER , 2003. Vol. 100, 169-176 p.
, NATO SCIENCE SERIES, SERIES II: MATHEMATICS, PHYSICS AND CHEMISTRY, 100
SITE-ISOLATION; STAR POLYMERS; DENDRIMERS
IdentifiersURN: urn:nbn:se:kth:diva-25462ISI: 000184285800016ISBN: 1-4020-1279-9OAI: oai:DiVA.org:kth-25462DiVA: diva2:358594
NATO Advanced Research Workshop on Organic Nanophotonics, AIX PROVENCE, FRANCE, AUG 25-29, 2002
QC 201010222010-10-222010-10-222010-10-22Bibliographically approved