Observation of whispering gallery modes and directional emission from spherical microcavities integrated with TTBC dye J-aggregates

Author

Savateeva, Diana ; Melnikau, Dzmitry ; Rakovich, Yury P.

Author_Institution

Centro de Fis. de Mater., Donostia, Spain

fYear

2012

fDate

2-5 July 2012

Firstpage

1

Lastpage

4

Abstract

We report on the resonant modes in micro-luminescence spectra of whispering gallery microcavities combining dielectric microspheres and J-aggregates of cyanine dye. We use fluorescence lifetime imaging spectroscopy to study modification of spontaneous emission rate in J-aggregates attached to a microcavity. Directional emission of light from the integrated microcavity is experimentally shown in this work and attributed to the photonic jets generated in the microsphere. The results show that whispering gallery resonators with dye nano-aggregates can be used as micro-organic light-emitting devices.

Keywords

aggregates (materials); dyes; fluorescence; laser cavity resonators; microcavities; photoluminescence; whispering gallery modes; TTBC dye J-aggregates; cyanine dye; dielectric microspheres; directional emission; dye nanoaggregates; fluorescence lifetime imaging spectroscopy; integrated microcavity; microluminescence spectra; photonic jets; resonant modes; spherical microcavities; spontaneous emission rate; whispering gallery microcavities; whispering gallery modes; whispering gallery resonators; Absorption; Films; Measurement by laser beam; Microcavities; Photonics; Surface emitting lasers; J-aggregates; directional emission; excitons; microcavities; whispering gallery modes;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2012 14th International Conference on

Conference_Location

Coventry

ISSN

2161-2056

Print_ISBN

978-1-4673-2228-7

Electronic_ISBN

2161-2056

Type

conf

DOI

10.1109/ICTON.2012.6253819

Filename

6253819