共查询到19条相似文献,搜索用时 78 毫秒
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推导了介质界面反射和折射电磁波的能量中心横向移动的计算式,它表明,横向移动的量值与入射波束的线度、入射角及介质的介电常数、磁导率有关。 相似文献
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高考物理选择题的解析技巧 总被引:1,自引:1,他引:0
选择题不需要解答过程,只要解答结果,因此快速、准确解答选择题能赢得宝贵的时间.近几年的高考选择题出现了既考查能力、方法又考查基础知识的难度较大的题目.对这些试题的求解则需要迅速捕捉试题特征、以此突破,形成正确的解题思路,达到事半功倍之效果. 相似文献
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The coefficients of reflection and refraction on interface of the crystals in the Savart polariscope
According to the boundary conditions of the electromagnetic field, the coefficients of reflection and refraction on the interface of crystal in the Savart polariscope are obtained for ordinary ray (o-ray) and extraordinary ray (e-ray).The coefficients of reflection and refraction are different from an isotropic medium and have more complicated forms than isotropic medium. 相似文献
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考虑到位于两物质界面上的Metasurface对光线传播行为的影响, 从费马原理和边界条件连续两种角度出发, 推导了可用于相位突变界面的广义反射与折射定律. 该定律在界面对光波的相位改变量为零的情况下, 回归为通常的反射定律和折射定律. 利用广义的折射定律和反射定律讨论了介质折射率、界面上的相位梯度等因素对光传播行为的影响, 发现利用广义的折射定律和反射定律很容易实现反常反射和反常折射行为, 并给出了出现反常反射和反常折射的条件, 以此为基础可以实现对光波的随意控制. 依据广义的折射定律和反射定律分析了一维相位掩模板对光场传播行为的影响.
关键词:
超材料
相位突变界面
反射定律
折射定律 相似文献
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This paper reports on the discovery of the generalized vectorial laws of multiple reflection and refraction as an extension of the earlier discovery of the generalized vectorial laws of reflection and refraction reported in 2005. The present discovery is novel and original and interesting from academic point of view. It will enrich the field of optics. 相似文献
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Yanfang Yang Zhuangqi Cao Qishun Shen Jumin Hao Ling Qiu Yuquan Shen Wen Yuan Pingping Xiao 《Optics & Laser Technology》2005,37(3):225-228
Multi-channel light modulation, which is based on the attenuated total reflection (ATR) configuration, is proposed in this paper. The device consists of a prism and a polymer optical waveguide. Guided modes which give rise to the resonance dips in the ATR spectrum are employed to act as the modulation channels. Double channel's modulation with the same modulation signal has been demonstrated in the proposed device. 相似文献
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This paper uses the two-dimensional Brusselator model to
study reflection and refraction of chemical waves. It presents some
boundary conditions of chemical waves, with which occurence of
observed phenomena at interface as refraction and reflection of
chemical waves can be interpreted. Moreover, the angle of reflection
may be calculated by using the boundary conditions. It finds that
reflection and refraction of chemical waves can occur simultaneously
even if plane wave goes from a medium with higher speed to a medium
with lower speed, provided the incident angle is larger than the
critical angle. 相似文献