Title :
Enhanced fluorescence emission using a photonic crystal coupled to an optical cavity
Author :
Pokhriyal, Anusha ; Meng Lu ; Chaudhery, Vikram ; George, Saly ; Cunningham, Brian T.
Author_Institution :
Dept. of Phys., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
Abstract :
In this work we report a fundamentally new approach to enhance fluorescence in which surface adsorbed fluorophore-tagged biomolecules are excited on a photonic crystal surface that is coupled to an underlying Fabry-Perot type cavity through a gold mirror reflector beneath the photonic crystal. This approach leads to 6× increase in signal-to-noise ratio of a dye labeled polypeptide compared to ordinary photonic crystal enhanced fluorescence.
Keywords :
Fabry-Perot resonators; dyes; fluorescence; gold; mirrors; molecular biophysics; optical couplers; photonic crystals; Fabry-Perot type cavity; dye labeled polypeptide; enhanced fluorescence emission; gold mirror reflector; optical cavity; photonic crystal; signal-to-noise ratio; surface adsorbed fluorophore-tagged biomolecules; Biomedical optical imaging; Cavity resonators; Fluorescence; Optical coupling; Optical polarization; Optical reflection; Optical surface waves;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
