Evidence for braggoriton excitations in opal photonic crystals infiltrated with highly polarizable dyes

  title={Evidence for braggoriton excitations in opal photonic crystals infiltrated with highly polarizable dyes},
  author={Nayer Eradat and Andrey Y. Sivachenko and M. E. Raikh and Zeev Valy Vardeny and Anvar A. Zakhidov and R. H. Baughman NP Photonics and Az Tucson and University of Utah and Honeywell Int. Research and Technology Center},
  journal={Applied Physics Letters},
We studied angle-dependent reflectivity spectra of opal photonic crystals infiltrated with cyanine dye aggregates, which are highly polarizable media with very large Rabi frequency. We show that, at resonance condition between the exciton-polariton of the dye aggregate and the Bragg gap, the Bragg stop band decomposes into two reflectivity bands with a semitransparent spectral range in between, that is due to propagation of braggoritons inside the gap. 
Excitations in opal photonic crystals infiltrated with polarizable media
Photonic crystals (PC) are a class of artificial structures with a periodic dielectric function. PCs can be a laboratory for testing fundamental processes involving interactions of radiation with
Exciton-polaritons in Bragg gratings
We study the strong coupling between photons and bulk excitons in a one-dimensional Bragg grating. The dispersion of the resulting Bragg-polariton states resembles the dispersion of quantum-well
Tuning optical properties of opal photonic crystals by structural defects engineering
We report on the preparation and optical characterization of three dimensional colloidal photonic crystal (PhC) containing an engineered planar defect embedding photoactive push-pull dyes. Free
Strong coupling between excitons in organic semiconductors and Bloch surface waves
We report on the strong coupling between the Bloch surface wave supported by an inorganic multilayer structure and J-aggregate excitons in an organic semiconductor. The dispersion curves of the
Microcavity polaritonlike dispersion doublet in resonant Bragg gratings
Periodic structures resonantly coupled to excitonic media allow the existence of extra intragap modes (“Braggoritons”) due to the coupling between Bragg photon modes and bulk excitons. This induces
Phonon-polariton excitations in photonic crystals
The incorporation of materials which exhibit transverse phonon-polariton excitations into a photonic crystal produces an intricate optical system possessing unique and varied photon phenomena. In
Hybrid Plasmonic–Photonic Nanostructures: Gold Nanocrescents Over Opals
The interaction of localized surface plasmon resonances (LSPRs) with the photonic modes in an opal photonic crystal is reported. Gold nanocrescents are evaporated at glancing angles over both
Spectroscopic Investigation of Artificial Opals Infiltrated with a Heteroaromatic Quadrupolar Dye
We report on the optical properties of polystyrene opals infiltrated with solutions of ad hoc synthesized heteroaromatic quadrupolar dyes endowed with strong nonlinear optical properties (two-photon
Photonic crystals modified by optically resonant systems
We investigate light propagation in periodic nanoscale structures known as photonic crystals. The goal is to gain insight into how the propagation of light can be modified and exploited for uses in


Excitations in photonic crystals infiltrated with polarizable media
Light propagation in a photonic crystal infiltrated with polarizable molecules is considered. We demonstrate that the interplay between the spatial dispersion caused by Bragg diffraction and
Room Temperature Polariton Emission from Strongly Coupled Organic Semiconductor Microcavities
We report a room temperature study of the strong exciton-photon coupling regime in a planar microcavity, containing cyanine dye aggregates with delocalized exciton wave functions ( $J$ aggregates).
Different regimes of light localization in a disordered photonic crystal
A. F. Ioffe Physical-Technical Institute, 194021 St. Petersburg, Russia~Received 2 December 1998!It is known that photonic Bloch states can become strongly localized near the band edges in a
Laser action from two-dimensional distributed feedback in photonic crystals
We report an analysis of the operation of a new type of laser resonator with two-dimensional distributed feedback from a photonic crystal. The gain medium consists of a
Demonstration of highly efficient waveguiding in a photonic crystal slab at the 1.5-microm wavelength.
Light waves are shown to be guided along a triple-line defect formed within a 2D crystal and vertically by a strong index-guiding mechanism, suggesting lossless guiding along this photonic one-dimensional conduction channel.
Visible photonic band gap engineering in silicon nitride waveguides
We demonstrate experimentally the tuning of complete photonic band gaps in patterned silicon nitride waveguides. Transmission measurements were performed using an ultrabroadband high-brightness white
Strong coupling of exciton and photon modes in photonic crystal infiltrated with organic–inorganic layered perovskite
Large vacuum Rabi-splitting, the evidence of strong coupling of photon and exciton modes, was observed at room temperature in an ordered array of silica microspheres infiltrated with
Photonic crystals: putting a new twist on light
Photonic crystals are materials patterned with a periodicity in dielectric constant, which can create a range of 'forbidden' frequencies called a photonic bandgap. Photons with energies lying in the
Coupled guide and cavity in a two-dimensional photonic crystal
We demonstrate, in a planar two-dimensional (2D) configuration, in the optical regime a clear association of two photonic crystal elements and the ability to produce a low-loss coupled system. A
Trapping and emission of photons by a single defect in a photonic bandgap structure
By introducing artificial defects and/or light-emitters into photonic bandgap structures, it should be possible to manipulate photons. For example, it has been predicted that strong localization (or