B掺杂Co2FeSi材料磁性的第一原理研究,徐晓光,张德林,本文采用第一原理计算的方法对B掺杂Co2FeSi半金属Heusler合金材料进行了研究,预言了一种新的半金属材料。研究发现Co2FeSi1-xBx的晶胞参数
2024-03-03 11:16:18 238KB 首发论文
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铝纳米颗粒掺杂制备高矫顽力和高耐蚀性烧结Nd-Fe-B磁体,刘卫强,孙超,采用传统方法制备了铝纳米颗粒掺杂烧结Nd-Fe-B磁体,研究了铝含量对磁体的磁性能、腐蚀性能和氧化性能的影响。研究结果表明随着铝�
2024-02-26 10:57:58 343KB 首发论文
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掺铒光纤放大器的权威理论书籍,英文原版,可供大学教育、研究者及从事光纤放大器及相关光通信系统开发的专业人员作参考资料。
2021-12-03 18:45:09 31.49MB EDFA理论基础
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翻译Fe-doped cryptomelane synthesized by refluxing at atmosphere_ structure, properties and photocatalytic degradation of phenol (2)
2021-11-17 15:01:33 1.08MB
Yb3 + / Nd3 + / Tm3 +三掺杂碲酸盐玻璃的改进的热稳定性和强烈的蓝色上转换
2021-03-18 13:05:46 256KB 研究论文
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A Versatile, Ultralight, Nitrogen‐Doped Graphene Framework.pdf
2021-03-15 10:08:06 886KB 文献
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Nd-3-H掺杂磷酸盐玻璃中的光学平面波导是通过以6.0 x 1014离子/ cm2的剂量注入6.0-MeV碳离子和以6.0x 1014离子/ cm的注入量注入6.0-MeV氧离子制造的( 2)。 引导模和相应的有效折射率是通过模态2010棱镜耦合器测量的。 基于物质中离子的终止和范围以及RCM反射率计算方法,分析了波导的折射率分布。 分别通过端面耦合法和有限差分光束传播法测量并模拟了近场光强度分布。 进行了碳注入波导和氧注入波导的光学特性的比较。 微发光和拉曼光谱研究表明,Nd 3-离子的荧光性质和玻璃微结构在波导区域中得到了很好的保留,这表明碳/氧注入波导是集成光子器件的良好候选者。 (C)2015年光电仪器工程师协会(SPIE)
2021-03-02 18:05:44 1.49MB waveguide; ion implantation; Nd3+-doped
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Ytterbium-doped yttrium oxysulfide (Yb:Y2O2S) has been synthesized by solid-state reaction with sulfide flux. Diffuse reflection and emission spectra have been measured in order to determine the crystal field splitting of Yb3+ ion in the YOS lattice. According to the crystal-field levels probed in the spectra, the crystal field splitting of 2G7/2 manifold of Yb3+ ion in YOS is 709 cm-1, which is large enough for the quasi-three-level laser operation of Yb3+ ion. Emission peak position, width, fu
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A high repetition rate Tm:Ho:LuLiF master-oscillator and polarization-maintaining (PM) Tm-doped fiber power-amplifier system is presented. A 11.3-kHz, 0.4-nm line width, 0.89-W Tm:Ho:LuLiF seed laser is developed. Using a two-stage PM Tm-doped fiber power amplifier system, 32.4-W output power is obtained with 0.4-nm line width at a central wavelength of 2058.5 nm, corresponding to 0.66-W seed laser. The laser spectrum and pulse profile are measured.
2021-02-26 09:06:26 785KB Tm:Ho:LuL 2微米 MOPA 保偏掺铥
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We report an all-fiber high power, single frequency large-mode area (LMA) linearly polarized ytterbiumdoped fiber amplifiers (YDFA) module, which is based on the master oscillator multi-stage power amplifiers (MOPA). The maximum output power is 43.8 W at a wavelength of 1064 nm when 60-W launched pump light is coupled, with high slope efficiency of 88%, polarization extinction rate (PER) >17.2 dB and nearly diffraction-limited beam quality (M2<1.1).
2021-02-26 09:05:48 961KB 单频 主震荡功 线偏振光 消光比
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