ZHAN Yong-bo, HE Lei, MO Jun-yu etc. Fluorescence and Spectral Down-conversion Characterization of Dye-doped Polymer Fibers[J]. Chinese Journal of Luminescence, 2014,35(3): 269-275
ZHAN Yong-bo, HE Lei, MO Jun-yu etc. Fluorescence and Spectral Down-conversion Characterization of Dye-doped Polymer Fibers[J]. Chinese Journal of Luminescence, 2014,35(3): 269-275 DOI: 10.3788/fgxb20143503.0269.
Fluorescence and Spectral Down-conversion Characterization of Dye-doped Polymer Fibers
To extend the application of dye-doped polymer fibers
polymethyl methacrylate (PMMA) rods doped with Coumarin 540 and Rhodamine 6G laser dyes were synthesized with methyl methacrylate (MMA)
and drawn to fibers with 1 000 m diameters. The fluorescence and fluorescence transmission loss of the dyes and the spectral down-conversion properties of the dye-doped polymer fibers were studied under side illumination and front surface illumination conditions
where a commercial LED lamp was used as illumination source. The Stokes shifts of these two dyes doped in PMMA matrix were found to be 70 nm and 50 nm
respectively. Under side-illumination condition
0.01 mg/g and 0.04 mg/g dopant concentrations
the transmission loss of the fibers for 520 nm and 577 nm fluorescence were determined to be 0.336 cm
-1
and 0.343 cm
-1
respectively. Under front surface illumination condition
the down-converted spectral outputs from the end of the fibers were observed with high conversion efficiency which was relative with dye concentration and fiber length. The dye-doped polymer fibers are possible coupled with silica fibers to modify the frequencies of the light transmitted by the silica fibers to better satisfy different application requirements.
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references
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