A unified description of linear and nonlinear polarization in organic polymethine dyes

Seth R. Marder, Christopher B. Gorman, Fabienne Meyers, Joseph W. Perry, Grant Bourhill, Jean Luc Brédas, Brian M. Pierce

Research output: Contribution to journalArticlepeer-review

606 Scopus citations

Abstract

An internal or external electric field F can drive the chemical structure, bond order alternation, and electronic structure of linear polymethine dyes from a neutral, bond-alternated, polyene-like structure, through a cyanine-like structure, and ultimately to a zwitterionic (charge-separated) bond-alternated structure. As the structure evolves under the influence of F, the linear polarizability α, the first hyperpolarizability β, and the second hyperpolarizability γ are seen to be derivatives, with respect to F, of their next lower order polarization (for α) or polarizability (for β and γ). These derivative relations provide a unified picture of the dependence of the polarizability and hyperpolarizabilities on the structure in linear polymethine dyes. In addition, they allow for predictions of structure-property relations of higher order hyperpolarizabilities.

Original languageEnglish (US)
Pages (from-to)632-635
Number of pages4
JournalScience
Volume265
Issue number5172
DOIs
StatePublished - 1994
Externally publishedYes

ASJC Scopus subject areas

  • General

Fingerprint

Dive into the research topics of 'A unified description of linear and nonlinear polarization in organic polymethine dyes'. Together they form a unique fingerprint.

Cite this