title: Surface enhanced fluorescence of Rh6G with gold nanohole arrays.
abstract: Five gold nanohole arrays with distinct aperture size were fabricated by magnetron sputtering technique. Fluorescence enhancements of Rh6G fluorophore in the close vicinity of gold nanohole arrays were observed. Up to 40 times increase of fluorescence intensity was obtained from gold nanohole arrays as compared with a smooth gold surface control sample. A double-peak curve was presented in the excitation spectrum of enhanced fluorescence emission when the excitation wavelength was scanning from 300 nm to 550 nm. It was found that smaller aperture size and proper excitation wavelength matching with the surface plasmon resonances condition were favorable for a better fluorescence enhancement.
authors.affiliation: College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, P. R. China.
authors.forename: Zhenglong
authors.initials: Z
authors.lastname: Zhang
authors.forename: Hairong
authors.initials: H
authors.lastname: Zheng
authors.forename: Meicen
authors.initials: M
authors.lastname: Liu
authors.forename: Han
authors.initials: H
authors.lastname: Zhang
authors.forename: Baoyin
authors.initials: B
authors.lastname: Yin
authors.forename: Hongjun
authors.initials: H
authors.lastname: Zhang
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008855:Microscopy, Electron, Scanning; D058608:Nanopores; D012235:Rhodamines / Q000737:chemistry*; D020349:Surface Plasmon Resonance / Q000379:methods*; D013499:Surface Properties
chemical_list: D005456:Fluorescent Dyes; D012235:Rhodamines; C026188:rhodamine 6G; D006046:Gold