Surface plasmon coupled fluorescence in deep-ultraviolet excitation by Kretschmann configuration

• Published in: Frontiers of physics Vol. 9; no. 1; pp. 60 - 63
• Main Authors: Ono, Atsushi, Kikawada, Masakazu, Inami, Wataru, Kawata, Yoshimasa
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.02.2014; Springer Nature B.V
• Subjects: Aluminum; Astronomy; Astrophysics and Cosmology; Atomic; CdSe量子点; Condensed Matter Physics; Excitation; Fluorescence; Metal films; Molecular; Optical and Plasma Physics; Oxidation; Particle and Nuclear Physics; Physics; Physics and Astronomy; Quantum dots; Research Article; Resonance; Surface plasmon resonance; Thin films; 紫外光激发; 耦合; 荧光; 菲涅耳原理; 表面等离子体共振; 表面等离子体激元; 配置; fluorescence; deep-ultraviolet light; surface plasmon polarities
• ISSN: 2095-0462; 2095-0470
• DOI: 10.1007/s11467-013-0385-x

We report the experimental demonstration of fluorescence of CdSe quantum dots with surface plasmon excitation in deep-ultraviolet （deep-UV） region. Surface plasmon resonance in deep-UV is excited by aluminum thin film in the Kretschmann-Raether geometry. Considering the oxidation thickness of aluminum, the experimental results of incident angle dependence of reflectance show good agreement with Fresnel theory. Surface plasmon resonance with 19 nm-thick aluminum and 5 nm-thick almnina was excited at the incident angle of 48 degrees for 266 nm excitation. Fluorescence of CdSe quantum dots coated on this aluminum film was observed by the surface plasmon excitation.