A diode-pumped master oscillator power amplifier system based on a cryogenic Yb:YAG active-mirror laser has been developed.The performances of the laser amplifier at low temperature and room temperature have been inve...A diode-pumped master oscillator power amplifier system based on a cryogenic Yb:YAG active-mirror laser has been developed.The performances of the laser amplifier at low temperature and room temperature have been investigated theoretically and experimentally.A maximum output energy of 3.05 J with an optical-to-optical efficiency of 14.7% has been achieved by using the master amplifier system.展开更多
In order to improve the laser-induced damage threshold （LIDT） of the ZrO2 film, the effect of polyvinyl pyrrolidone （PVP） with different average molecular weight on coatings is studied. The ZrO2 sol is prepared by...In order to improve the laser-induced damage threshold （LIDT） of the ZrO2 film, the effect of polyvinyl pyrrolidone （PVP） with different average molecular weight on coatings is studied. The ZrO2 sol is prepared by the hydrolysis of zirconium n-propoxide with acetylacetone as the chelating agent. The PVP （K16-18） is more suitable to obtain high LIDT coatings than other PVPs. The LIDT of the ZrO2-PVP coatings is improved with the increase of the PVP （K16-18） content. When the PVP （K16-18） content is 2.4 wt.-~0, the LIDT of the ZrO2-PVP coatings is 43.5 J/cm2 （1064 nm, 12 ns）. The ZrO2 sol and ZrO2-PVP （K16- 18） sol have the good stability in 3 months. The refractive indices of the ZrO2-PVP coatings decrease with the increase of the PVP （K16-18） content.展开更多
基金the support of the Knowledge Innovation Project of the Chinese Academy of Sciencesthe National Natural Science Foundation of China(No.61008020)
文摘A diode-pumped master oscillator power amplifier system based on a cryogenic Yb:YAG active-mirror laser has been developed.The performances of the laser amplifier at low temperature and room temperature have been investigated theoretically and experimentally.A maximum output energy of 3.05 J with an optical-to-optical efficiency of 14.7% has been achieved by using the master amplifier system.
基金supported by the High-Tech Research and Development Program of China(No.8638042).
文摘In order to improve the laser-induced damage threshold （LIDT） of the ZrO2 film, the effect of polyvinyl pyrrolidone （PVP） with different average molecular weight on coatings is studied. The ZrO2 sol is prepared by the hydrolysis of zirconium n-propoxide with acetylacetone as the chelating agent. The PVP （K16-18） is more suitable to obtain high LIDT coatings than other PVPs. The LIDT of the ZrO2-PVP coatings is improved with the increase of the PVP （K16-18） content. When the PVP （K16-18） content is 2.4 wt.-~0, the LIDT of the ZrO2-PVP coatings is 43.5 J/cm2 （1064 nm, 12 ns）. The ZrO2 sol and ZrO2-PVP （K16- 18） sol have the good stability in 3 months. The refractive indices of the ZrO2-PVP coatings decrease with the increase of the PVP （K16-18） content.
