Abstract
Moderate fluorescence from aluminium doped zinc oxide films is detected. It is shown that this defect-related fluorescence can be controlled for the films deposited on the gilded glass and attached to the semicylinder prism. Namely the changes in the spectral shape, intensity and polarization of fluorescence were detected for certain resonant angles in case of detection through the prism. Maxima in fluorescence intensity were obtained for detection angles corresponding to minima in light reflection. The strength of electric field inside the layered structure is calculated and analysed. On the basis of this analysis coupling of fluorescent light with hybrid waveguide-plasmonic and waveguide modes at resonant detection angles is considered as the cause for obtained directional fluorescence.
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This work was supported by the Estonian Research Council (institutional project IUT34-27) and partially by ETF9283, Marie Curie ILSES Project No. 612620 and NATO SPS project NUKR.SFPP984702.
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Dolgov, L., Kondratiev, V.I., Loot, A. et al. Resonant control of fluorescence from aluminium doped zinc oxide films. Opt Quant Electron 48, 522 (2016). https://doi.org/10.1007/s11082-016-0794-5
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DOI: https://doi.org/10.1007/s11082-016-0794-5