Directional emission from dye-functionalized plasmonic DNA superlattice microcavities
Abstract
In this article, we use microscopic rhombic dodecahedra made from DNA-programmable assembly of programmable atom equivalents (i.e., DNA-functionalized nanoparticles), to study the importance of nano- and microscopic architecture on directional light emission. The DNA sequence design provides subnanometer control over the interactions between light-emitting molecules and metal nanoparticles, resulting in micrometer-scale light–matter interactions which induce unique spatial and spectral emission profiles. Electrodynamics calculations combining the two scales successfully model the observed behaviors. This initial study provides a compelling demonstration of the utility of DNA-programmable assembly for making 3D photonic devices that uniquely allow one to engage in structure–function relationship studies, important in fields spanning quantum electrodynamics and plasmonics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 04, 2017
- Source ID
- 10.1073/pnas.1619802114
Entities
People
- Chad Mirkin
- Clotilde M. Lethiec
- Daniel J. Park
- George C. Schatz
- Jessie C. Ku
- Lin Sun
- Nathaniel Stern
Organizations
- Air Force Office of Scientific Research
- National Science Foundation
- Northwestern University
- United States Department of Energy