Cooperative Two‐Photon Absorption Enhancement by Through‐Space Interactions in Multichromophoric Compounds

Abstract

Space invaders: A series of multichromophores (from dimers to dendritic 24-mers) is synthesized, spectroscopically characterized, and theoretically modeled. Enhancement of the two-photon absorption response depends on the number and distribution of chromophoric subunits (see picture, red) and increases with their proximity. The exciton model indicates purely electrostatic interactions. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.