Molecular-Induced Chirality Transfer to Plasmonic Lattice Modes.

ABSTRACT: Molecular chirality plays fundamental roles in biology. The chiral response of a molecule occurs at a specific spectral position, determined by its molecular structure. This fingerprint can be transferred to other spectral regions via the interaction with localized surface plasmon resonances of gold nanoparticles. Here, we demonstrate that molecular chirality transfer occurs also for plasmonic lattice modes, providing a very effective and tunable means to control chirality. We use colloidal self-assembly to fabricate non-close packed, periodic arrays of achiral gold nanoparticles, which are embedded in a polymer film containing chiral molecules. In the presence of the chiral molecules, the surface lattice resonances (SLRs) become optically active, i.e., showing handedness-dependent excitat

SUBMITTER: Goerlitzer ESA 

PROVIDER: S-EPMC10288536 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature