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a te中文是什么意思

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用"a te"造句"a te"怎么读"a te" in a sentence

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  • 给你 萨克斯风:肯尼基

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  • The most achievement is that we firstly obtain the analytic accurate solution of the modal fields of the waveguide structure and find some available character : ( 1 ) the different uniaxial crystal materials have the different propagation properties ; ( 2 ) when the optical axis of the crystal is on the plane that is made up of the normal direction of the waveguide plane and the propagation , there are te mode and tm mode in this special waveguide , but the principal mode is different of the character of the uniaxial crystal , the principal mode is the principal mode of te mode for the negative uniaxial crystal , but the one of tm mode for the positive uniaxial crystal ; ( 3 ) when the crystal optical - axis parallel to the waveguide plane , for the positive uniaxial crystal material , the principal mode of the waveguide is a te wave , which can be excited by the light at any frequency ; when the light frequency satisfies a single mode propagation condition , there will be only the principal mode propagating in the waveguide , otherwise some of the higher order modes can be excited , which are neither te modes , nor tm modes , but the hybrid guided modes
    本文就是在此背景下,利用金属波导和单轴晶体的一些特性,结合麦克斯韦方程组和波导的边界条件,从三种不同的情况研究了光在对称平面单轴晶体金属波导(波导层是单轴晶体,两个波导界面均为金属)内的传输特性,其主要贡献为,首次解析地得到了这种波导结构下模式场的精确解,并发现了一些有用的特性: ( 1 )模式场的性质因单轴晶体的性质不同而异; ( 2 )当单轴晶体光轴位于波导界面法方向与传输方向构成的平面内时,波导中传输te波和tm波,只不过其主模因单轴晶体的性质不同而异,当波导层介质为负单轴晶体时,波导主模是te波主模,而波导层介质为正单轴晶体时波导主模是tm波主模。 ( 3 )当单轴晶体光轴位于波导面内时,对于正单轴晶体,波导的主模是横电波te _ 0模,任何频率的光波均可激励该模式;当光波波长满足一定条件时,波导内传输单模,否则,将激励起高阶模式,高阶模即匪te波,也匪tm波,而是两者耦合而成的混合模。
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