Highly efficient and photostable solid-state dye lasers based on modified copolymers doped with PM567 |
| |
Authors: | Yugang Jiang Rongwei Fan Yuanqin Xia Deying Chen |
| |
Affiliation: | National Key Laboratory of Science and Technology on tunable Laser, Institute of optical-electronics, Harbin Institute of Technology, Harbin 150080, China |
| |
Abstract: | Solid-state dye samples based on modified copolymers of methyl methacrylate (MMA) and 2-hydroxyethyl methacrylate (HEMA) with methanol doped with PM567 were first prepared. The volume proportions of methanol have great effects on the laser's characteristics including spectra, lasing output and thermal properties. The highest slope efficiency of 64.25% was achieved in the sample MP (MMA:HEMA = 85:15 + 10% methanol). Pumping the samples at a repetition rate of 5 Hz with a pulse energy as high as 100 mJ (the fluence was 0.26 J/cm2), the maximum lifetime of 278,000 shots was obtained in the sample MP (MMA:HEMA = 85:15 + 15% methanol), and the corresponding normalized photostability reached 180.7 GJ/mol. The obtained ten-shots damage thresholds were as high as 6.7 J/cm2. The results indicate that the laser properties of solid-state dyes can be greatly enhanced by using modified copolymers of MMA and HEMA with methanol as solid hosts. |
| |
Keywords: | Solid-state dye laser Modified copolymer Slope efficiency Photostability |
本文献已被 ScienceDirect 等数据库收录! |