title: Twenty-fold enhancement of molecular fluorescence by coupling to a J-aggregate critically coupled resonator.
abstract: We report a 20-fold enhancement in the fluorescence of the organic dye DCM when resonantly coupled to a strongly optically absorbing structure of a thin film of spin-deposited molecular J-aggregates in a critically coupled resonator (JCCR) geometry. A submonolayer equivalent of DCM molecules is shown to absorb and re-emit 2.2% of the incident resonant photons when coupled to the JCCR enhancement structure, compared to 0.1% for the bare film of same thickness on quartz. Such a JCCR structure is a general energy focusing platform that localizes over 90% of incident light energy within a 15 nm thin film layer in the form of excitons that can subsequently be transferred to colocated lumophores. Applications of the exciton-mediated concentration of optical energy are discussed in the context of solid-state lighting, photodetection, and single photon optics.
authors: Department of Physics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Room 13-3146, Cambridge, Massachusetts 02139, USA. akselrod@mit.edu
authors: Gleb M
authors: GM
authors: Akselrod
authors: Brian J
authors: BJ
authors: Walker
authors: William A
authors: WA
authors: Tisdale
authors: Moungi G
authors: MG
authors: Bawendi
authors: Vladimir
authors: V
authors: Bulovic
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014732:Vibration
chemical_list: D005456:Fluorescent Dyes