1. Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8001, Japan; 2. Department of Electronics and Materials Science, Graduate School of Engineering, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8561, Japan; 3. CREST, Japan Science and Technology Agency, Japan; 4. Department of Mechanical Engineering, Graduate School of Engineering, Shizuoka University, 3-5-1, Johoku, Naka, Hamamatsu 432-8561, Japan
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 alumina 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.
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