共查询到17条相似文献，搜索用时 343 毫秒
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新型低温等离子体技术及应用 总被引：2，自引：0，他引：2
等离子体尤其是低温等离子体由于其一系列特殊的性质,广泛应用于薄膜沉积、微电路干法刻蚀、材料表面改性等方面。本文介绍了目前经常采用的几种新型低温等离子体技术,电子回旋共振（ECR）等离子体、射频感应耦合（ICP）等离子体、以及螺旋波（HWP）等离子体。这几种等离子体由于无内电极放电无污染、等离子体密度高、能量转换率高、电离度高等优点必将在传统工艺的基础上得到更广泛的应用。 相似文献
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《赣南师范学院学报》2021,(3):49-52
设计一种可以工作在近红外区的新型圆形晶格结构的双折射多孔光纤表面等离子体共振折射率传感器.利用全矢量有限元法对传感器的传感特性进行详细的数值研究,研究结果表明:通过合理调节传感器的结构参数,该传感器能同时实现表面等离子体模和纤芯基模的相位匹配条件和损耗匹配条件,使表面等离子体模和纤芯基模产生完全耦合.此外,当待测样品折射率分布在1.33～1.35范围内时,传感器的波长灵敏度最高可达9 500 nm/RIU,且其折射率分辨率则高达1.05×10(-6) RIU. 相似文献
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介绍了Langmuir探针测量等离子体参数特性的实验原理和方法,采用Langmuir单探针诊断了电子回旋共振等离子体参数的分布特性。结果表明,在一定微波功率下,气压增加,等离子体密度趋于饱和。将Langmuir单探针测量等离子体特性实验引入高年级近代物理实验课程的综合创新实验,使得学生在动手实验的过程中接触到物理学科研究前沿领域的技术与知识,激发学生的创新意识和提高创新能力。 相似文献
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介绍了等离子体及其特点、等离子体的隐身原理和对电磁波的吸收原理,分析了等离子体隐身技术的特点、发展现状以及等离子体技术在军事等领域的发展前景. 相似文献
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乔红贞 《商丘师范学院学报》2013,(3):40-42
利用Nd:YAG脉冲激光诱导金属Cu靶,在空气中产生激光等离子体羽,获得了Cu等离子体羽的空间光谱;研究了等离子体谱线结构;分析了离焦量为-2 mm时,不同空间位置处等离子体的空间演化规律;并讨论了等离子体光谱的产生机制. 相似文献
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刘娟 《渭南师范学院学报》2005,20(5):14-15
等离子体技术处理污染物的先进性引起人们越来越多的重视.文章综述了冷等离子体治理温室气体、降解有毒废气、脱硫脱硝技术的研究进展及热等离子体在污染物处理领域的应用进展,并展望了其在环境处理领域的应用前景. 相似文献
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本文利用离散偶极子近似法,研究T型排列的金纳米棒双聚体的表面等离子体耦合共振特性,发现金纳米棒双聚体间距变化时表面等离子体共振消光峰发生红移或者蓝移,适当间距的T型排列金纳米棒双聚体结构可以产生更强的局域表面增强电场.本文对于金纳米棒双体结构的计算结果对于金纳米棒在生物传感方面应用具有一定的参考价值. 相似文献
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本文利用离散偶极子近似法,研究T型排列的金纳米棒双聚体的表面等离子体耦合共振特性,发现金纳米棒双聚体间距变化时表面等离子体共振消光峰发生红移或者蓝移,适当间距的T型排列金纳米棒双聚体结构可以产生更强的局域表面增强电场.本文对于金纳米棒双体结构的计算结果对于金纳米棒在生物传感方面应用具有一定的参考价值. 相似文献
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A flap-type wave energy converter (WEC) is combined with a nearshore breakwater to expand the application of WECs both economically and environmentally. Based on the linear potential theory, an eigenfunction expansion solution is developed for a periodic row of bottom-hinged flap-type WECs exposed to normal waves. Additionally, the viscous effect is considered using the ship rolling solution method with a viscous damping term included in the equation of motion, and the viscous damping expression is also described. The proposed solution is verified by comparison with published literatures. The results including the wave energy conversion efficiency, the reflected and transmitted proportion of the incident wave energy are presented for a range of wave periods and geometric ratios. It is demonstrated that better wave protection effects can be attained with smaller gaps between the WECs, where the transmitted proportion of the incident wave energy is lower. An optimal geometric ratio thus exists for a given wave power absorption and a specific wave period. 相似文献
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The interactions of laser field with plasma are studied by using the analog model of gravity. The interactions of laser field with plasma are regarded as an equivalent effective geometry. An effective metric for a plasma electron is developed. Validity of the metric is confirmed in the limit of non-relativity. The three-dimensional equation of motion for a plasma electron is derived from the general covariant equation of motion. The ponderomotive force and the Abraham＇s force are directly obtained from the three-dimensional equation. 相似文献
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Based on consolidation equations proposed for unsaturated soil, an analytical solution for 1D consolidation of an unsaturated single-layer soil with nonhomogeneous mixed boundary condition is developed. The mixed boundary condition can be used for special applications, such as tests occur in laboratory. The analytical solution is obtained by assuming all material parameters remain constant during consolidation. In the derivation of the analytical solution, the nonhomogeneous boundary condition is first transformed into a homogeneous boundary condition. Then, the eigenfunction and eigenvalue are derived according to the consolidation equations and the new boundary condition. Finally, using the method of undetermined coefficients and the orthogonal relation of the eigenfunction, the analytical solution for the new boundary condition is obtained. The present method is applicable to various types of boundary conditions. Several numerical examples are provided to investigate the consolidation behavior of an unsaturated single-layer soil with mixed boundary condition. 相似文献
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赵小侠 《西安文理学院学报》2011,(4):38-41
将1 064纳米脉冲Nd：YAG激光器聚焦于铁条表面产生等离子体.利用10条铁原子谱线做出Boltzmann图并求得等离子体的电子温度是6 474 K,同时利于铁原子谱线382.78纳米的Stark展宽求得等离子体的电子密度是2.7×1017cm-3.基于实验结果证明本实验的铁等离子体满足局部热力学平衡. 相似文献
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主要讨论了球Bessel方程在一般区间上的本征值问题,特别是方程在更为一般的第三边界条件下的本征值问题。首先说明了该问题是自共轭本征值问题,然后利用自共轭本征值问题的性质,给出了该问题确定本征值的特征方程和本征函数,并利用球Bessel函数与半奇数阶Bessel函数的关系计算了本征函数的模方。 相似文献
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曾锡滨 《衡阳师范学院学报》1994,(3)
波函数按力学量算符的本征函数系展开是量子力学的基本问题之一。它要求表示力学量的算符线性、厄米性，且全连续。本文证明了异于零的全连续的线性厄米算符有正交的完全的本征函数系，并就正交函数系的封闭性、完全性及展开的唯一性进行了讨论。 相似文献