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Photoluminescence of PMMA doped with fluorescein and carbosilane dendrimer and lasing in PBG resonance cavity |
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| Authors: | Chun-Fang Li Xian-Zi Dong Xuan-Ming Duan |
| Institution: | a Laboratory of Organic NanoPhotonics, Technical Institute of Physical and Chemistry, Chinese Academy of Science, Zhongguancunbeiyitiao No. 2, Haidian, Beijing 100080, PR China b Graduate School of Chinese Academy of Science, Zhongguancunbeiyitiao No. 2, Haidian, Beijing 100080, PR China |
| Abstract: | Carbosilane dendrimers with terminal allyl groups were synthesized and used to encapsulate the allyl derivative of fluorescein (allyl-FL) doped in PMMA. The optical property of this system was investigated and the results showed that the concentration of allyl-FL in PMMA could be increased to 4.5 wt% without decrease of the luminescence efficiency by adding the dendrimer into the system. The allyl-FL/dendrimer/PMMA film was embedded into a resonance cavity composed of two pieces of photonic band gap (PBG) materials to form a new-type solid-state laser. A laser emission at 589 nm was obtained when excited with a third harmonic generation (THG) of a pulsed Nd:YAG laser (355 nm) and its full-width at half-maximum of the spectrum was 1.7 nm. |
| Keywords: | Carbosilane dendrimer Luminescence PBG materials Solid-state polymer dye laser |
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