Abstract
We investigated experimentally the influence of 1D rectangular Au gratings on fluorescence. The formation of a bandgap in the dispersion relation is confirmed by our experiment. At the edge of this bandgap, the fluorescence of the dye can be strongly enhanced due to the surface plasmon polaritons’ large density of states. By structural design we tuned the plasmonic band edges to the wavelength of the fluorescence of the dye molecules. An optimized Au grating structure with a duty ratio of is found to achieve up to 120 times stronger fluorescence than that of a planar metal surface.
© 2013 Optical Society of America
Full Article | PDF ArticleMore Like This
Terrell D. Neal, Koichi Okamoto, and Axel Scherer
Opt. Express 13(14) 5522-5527 (2005)
Jian-Juan Jiang, Yu-Bo Xie, Zheng-Yang Liu, Xia-Mei Tang, Xue-Jin Zhang, and Yong-Yuan Zhu
Opt. Lett. 39(8) 2378-2381 (2014)
Koji Toma, Milan Vala, Pavel Adam, Jiří Homola, Wolfgang Knoll, and Jakub Dostálek
Opt. Express 21(8) 10121-10132 (2013)