Plexciton Dynamics: Exciton−Plasmon Coupling in a J-Aggregate−Au Nanoshell Complex Provides a Mechanism for Nonlinearity
Top Cited Papers
- 18 March 2011
- journal article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 11 (4), 1556-1560
- https://doi.org/10.1021/nl104352j
Abstract
Coherently coupled plasmons and excitons give rise to new optical excitations- plexcitons − due to the strong coupling of these two oscillator systems. Time-resolved studies of J-aggregate-Au nanoshell complexes when the nanoshell plasmon and J-aggregate exciton energies are degenerate probe the dynamical behavior of this coupled system. Transient absorption of the interacting plasmon-exciton system is observed, in dramatic contrast to the photoinduced transmission of the pristine J-aggregate. An additional, transient Fano-shaped modulation within the Fano dip is also observable. The behavior of the J-aggregate-Au nanoshell complex is described by a combined one-exciton and two-exciton state model coupled to the nanoshell plasmon.This publication has 41 references indexed in Scilit:
- Optical Response of Strongly Coupled Quantum Dot−Metal Nanoparticle Systems: Double Peaked Fano Structure and BistabilityNano Letters, 2008
- All-optical switching in subwavelength metallic grating structure containing nonlinear optical materialsOptics Letters, 2008
- Optical bistability in subwavelength metallic grating coated by nonlinear materialOptics Express, 2007
- Optical Bistability in Nonlinear Surface-Plasmon Polaritonic CrystalsPhysical Review Letters, 2006
- Terahertz All‐Optical Molecule‐ Plasmon ModulationAdvanced Materials, 2006
- Molecule–Surface Plasmon Interactions in Hole Arrays: Enhanced Absorption, Refractive Index Changes, and All‐Optical SwitchingAdvanced Materials, 2006
- Optical bistability in subwavelength slit apertures containing nonlinear mediaPhysical Review B, 2004
- Optical switching due to whispering gallery modes in dielectric microspheres coated by a Kerr materialJournal of Microscopy, 2003
- Improvement of on/off ratio in single-shot multichannel demultiplexing by using an optical Kerr gate of a squarylium dye J aggregate filmApplied Physics Letters, 2002
- Large Optical Limiting from Novel Metal−Dendrimer Nanocomposite MaterialsJournal of the American Chemical Society, 2000