This paper reports that the tunable self-phase-stabilized infrared laser pulses have been generated from a two- stage optical parametric amplifier. With an 800 nm pump source, the output idler pulses are tunable from ...This paper reports that the tunable self-phase-stabilized infrared laser pulses have been generated from a two- stage optical parametric amplifier. With an 800 nm pump source, the output idler pulses are tunable from 1.3 μm to 2.3 μm, and the maximum output energy of the idler pulses is higher than I mJ at 1.6 μm by using 6 mJ pump laser. A carrier-envelope phase fluctuation of -0.15 rad （rms） for the idler pulses is measured for longer than one hour by using a home build f-to-2f interferometer.展开更多
We have studied the effect of magnesia （MgO） addition （0, 5, 10, and 20 mol%） in zirconia at pH values （7, 9, 11）. The magnesia doped zirconia （MgO-ZrO2） has been synthesized by a co-precipitation method using...We have studied the effect of magnesia （MgO） addition （0, 5, 10, and 20 mol%） in zirconia at pH values （7, 9, 11）. The magnesia doped zirconia （MgO-ZrO2） has been synthesized by a co-precipitation method using ammonium hydroxide as a mineralizer. As-prepared samples were characterized by XRD, FE-SEM, and TG-DSC. The XRD results showed that the quantity of tetragonal phase was increased with increasing pH value during synthesis. On the other hand, a decrease in the crystallite size of tetragonal phase was observed with increasing pH value. Therefore, the FE-SEM micrograph showed a clear decline in the particle size with increasing pH value. As-precipitated at pH-11, the addition of 10 mol% of MgO showed nearly pure tetragonal phase with a crystallite size of-34.16 nm.展开更多
基金Project supported from the National Basic Research Programme of China (Grant No 2006CB806001)the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No KGCX-YW-417)+1 种基金Shanghai Commission of Science and Technology (Grant Nos 07JC14055, 06DE22015 and 0652nm005)Japan-Korea-China Cooperative Project on "High Energy Density Sciences for Laser Fusion Energy"
文摘This paper reports that the tunable self-phase-stabilized infrared laser pulses have been generated from a two- stage optical parametric amplifier. With an 800 nm pump source, the output idler pulses are tunable from 1.3 μm to 2.3 μm, and the maximum output energy of the idler pulses is higher than I mJ at 1.6 μm by using 6 mJ pump laser. A carrier-envelope phase fluctuation of -0.15 rad （rms） for the idler pulses is measured for longer than one hour by using a home build f-to-2f interferometer.
文摘We have studied the effect of magnesia （MgO） addition （0, 5, 10, and 20 mol%） in zirconia at pH values （7, 9, 11）. The magnesia doped zirconia （MgO-ZrO2） has been synthesized by a co-precipitation method using ammonium hydroxide as a mineralizer. As-prepared samples were characterized by XRD, FE-SEM, and TG-DSC. The XRD results showed that the quantity of tetragonal phase was increased with increasing pH value during synthesis. On the other hand, a decrease in the crystallite size of tetragonal phase was observed with increasing pH value. Therefore, the FE-SEM micrograph showed a clear decline in the particle size with increasing pH value. As-precipitated at pH-11, the addition of 10 mol% of MgO showed nearly pure tetragonal phase with a crystallite size of-34.16 nm.
