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Author Bryukhanov, V. V. ♦ Borkunov, R. Yu ♦ Tsarkov, M. V. ♦ Konstantinova, E. I. ♦ Slezhkin, V. A.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword NANOSCIENCE AND NANOTECHNOLOGY ♦ ACTIVATION ENERGY ♦ DIPOLES ♦ ELECTRONS ♦ ENERGY TRANSFER ♦ EXCITATION ♦ FLUORESCENCE ♦ LASERS ♦ NANOPARTICLES ♦ PHOSPHORESCENCE ♦ PMMA ♦ QUENCHING ♦ RELAXATION ♦ RHODAMINES ♦ SILVER ♦ TEMPERATURE RANGE 0273-0400 K ♦ THIN FILMS
Abstract The fluorescence and phosphorescence of dyes in thin polymethylmethacrylate (PMMA) films in the presence of ablated silver nanoparticles has been investigated in a wide temperature range by methods of femtosecond and picosecond laser photoexcitation. The fluorescence and phosphorescence times, as well as spectral and kinetic characteristics of rhodamine 6G (R6G) molecules in PMMA films are measured in a temperature range of 80 – 330 K. The temperature quenching activation energy of the fluorescence of R6G molecules in the presence of ablated silver nanoparticles is found. The vibrational relaxation rate of R6G in PMMA films is estimated, the efficiency of the dipole – dipole electron energy transfer between R6G and brilliant green molecules (enhanced by plasmonic interaction with ablated silver nanoparticles) is analysed, and the constants of this energy transfer are determined. (nanophotonics)
ISSN 10637818
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-10-31
Publisher Place United States
Journal Quantum Electronics
Volume Number 45
Issue Number 10


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