NONLINEAR OPTICAL PROPERTIES OF NOVEL AND EFFECTIVE H-SHAPED CHROMOPHORES CONTAINING THREE PARALLEL AND NON-CONJUGATED D-pi-A UNITS
2011 (English)In: Journal of nonlinear optical physics and materials, ISSN 0218-8635, Vol. 20, no 3, 327-339 p.Article in journal (Refereed) Published
H-shaped chromophores containing three parallel non-conjugated D-pi-A units are effective chromophores with high hyperpolarizability and good optical transparency. The semi-empirical methods ZINDO, AM1, MNDO and PM3 were employed to study the effect of strength of acceptors and donors, and steric repulsion between substituents on static first hyperpolarizabilities (beta(0)) and enhancements of beta(0) of the H-shaped chromophores. The results show that the H-shaped chromophore would exhibit the largest beta(0) and/or the largest enhancement of beta(0) of the chromophore when combination of a donor (D) and an acceptor (A) in a D-pi-A unit is suitable.
Place, publisher, year, edition, pages
2011. Vol. 20, no 3, 327-339 p.
Nonlinear optical material, H-shaped chromophore, enhancement of the first hyperpolarizability, hyperpolarizability, optical transparency
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-51438DOI: 10.1142/S021886351100611XISI: 000296641300007ScopusID: 2-s2.0-84863130857OAI: oai:DiVA.org:kth-51438DiVA: diva2:464324
QC 201112132011-12-132011-12-122011-12-13Bibliographically approved