冰箱 wgm wtm 是什么意思_百度知道
冰箱 wgm wtm 是什么意思
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你好词名：WTM 解释：有线传输介质 缩写：WTM 来历：Wired Transmission Media 有线传输介质在数据传输中只作为传输介质，而非信号载体。
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该用户已隐藏个人动态上传用户：szmlnwxrno文档下载 ：『』&&『』『』学位专业：&关 键 词 ：&&&&&&&&权力声明：若本站收录的文献无意侵犯了您的著作版权，请点击。摘要:（摘要内容经过系统自动伪原创处理以避免复制，下载原文正常，内容请直接查看目录。）本论文重要环绕“光学回音壁模微腔形式特征的实际研讨与优化设计”这个主题睁开实际和运用研讨任务，重要评论辩论了WGM(回音壁模)微腔的光场偏向性发射、多模选择与克制，阶梯状FDTD模仿中高Q值圆腔的不稳固景象息争释，微腔散射消耗估量，及圆腔与多层圆腔的本征场折射—反射模子及其关于散射、谐振成绩求解和干预调制景象说明等方面的成绩。我们的详细任务以下：微花朵腔内形式选择、克制与光场偏向性发射和Q值稳固性剖析微花朵腔像微齿轮腔一样其周边的类Bragg光栅构造可以有用决裂角向模次为栅频率一半的二重简并的WGM，并进步个中一个形式的Q值而克制另外一个竞争形式，另外一方面，Bragg光栅还可克制角向模次与栅频率不知足一半关系的其它形式。微花朵腔界限的部分变形(包含其栅“齿”的拉长和紧缩和栅“间隙”加深和变浅。)可招致形式Q值的损坏并激发光场的偏向性发射，公道掌握变形参数，可完成微花朵腔的光场的双方向性发射。直角FDTD办法在微腔模仿中的人工散射消耗研讨与FDTD精度改良研讨基于直角网格的阶梯状近似在年夜量的FDTD(时域无限差分)算法中有运用。由阶梯状界限近似所引入的工资界限粗拙性招致了FDTD微腔模仿、剖析精度的缺乏，并存在不稳固景象，特殊是高Q值的盘算。基于斟酌腔存在对微扰极化电流散射场影响的类体积电流办法(类VCM)可很好的说明FDTD圆腔模仿Q值的偏低和不稳固景象。阶梯状近似FDTD圆腔模仿中Q值不稳固性源自散射感应的Q值随盘算步长不稳固变更而至。类VCM办法不陷于关于FDTD散射消耗的盘算，它可运用于在腔的各类参数扰动下所招致的散射消耗盘算。阶梯状界限近似所固有的人工散射消耗限制了其在高Q值盘算方面的运用，而基于直角网格的有用介电常数办法(如V一EP、CP一EP等)在不显著增长原算法的庞杂性格况下可明显进步盘算精度，不外它们关于极高Q值的盘算仍然显得有些缺乏，简略而有用的可模仿、盘算极高Q值微腔的FDTD算法仍然有吸引力。圆腔WGM自洽场描写和多层圆腔中的干预调制景象本征场折射—反射模子供给给我们一种以直不雅方法求解圆腔或多层圆腔散射与谐振成绩的简略办法。基于本征场的自再现(自洽)图象，我们可简略而直不雅地求解圆腔或多层圆腔WGM成绩，而且关于圆腔，基于本征场的波场—射线对应关系，这一进程加倍抽象。同时基于本征场折射—反射模子，我们可以完成对圆腔或多层圆腔散射成绩简略的求解。由本征场折射—反射模子所给出的本征波数方程也加倍合适研讨WGM的模谱特征。多层圆腔中干预调制景象也可基于剖析由本征场折射—反射模子给出本征波数方程发明并说明。在懂得层面，干预调制可基于多层圆腔内、外各腔WGM的耦合去熟悉。总腔WGM的谱为未耦合各腔未WGM谱瓜代分列构成。斟酌带有包覆层的两层圆腔，耦合WGM为内圆腔WGM和外环腔WGM产生共振时招致两者间的较强的互相感化而构成，介入感化的WGM由于耦合构成相似的对称及否决称WGM。最内层圆腔WGM由于与内部腔WGM的耦合可零丁涌现调制景象，在婚配前提不知足的情形下，内层圆腔WGM的场散布集中在外部圆腔中，因此消耗较小；在婚配前提下，耦合WGM场散布在内部腔内有较年夜比例，因此消耗较年夜。假如用内层圆腔的WGM唱工作形式并将增益施加到内圆腔中，则内WGM的增益也可呈干预调制特点。基于内WGM消耗和增益的调制特征，干预调制将供给给我们一种新鲜的形式选择方法。Abstract:This paper around the &optical whispering gallery mode microcavities form characteristics of the theoretical study and optimization design of the the theme of open practical and applied research, critical review debate the WGM (whispering gallery mode microcavity light field bias emission, multimode selection and restraint, the FDTD staircasing imitation high Q value of the circle cavity unstable scene information release, micro cavity scattering consumption measure, and circular cavity and multilayer circular cavity intrinsic refractive reflection model and results on scattering and resonance results solution and intervention modulation scene instructions. Us with the following tasks: Micro flowers cavity form choice, restraint and light field bias of emission and Q value stability analysis of micro flowers cavity like micro gear cavity as the surrounding class Bragg grating structure can be useful break angle to die for grid frequency half double degenerate WGM, and therein a form of Q value and restraint also a form of competition, on the other hand, Bragg grating can also restraint angle to other forms of mode and grid frequency is not satisfied with half of the relationship. Micro flower cavity boundaries of the partial deformation (including its gate &teeth& of the elongated and tight and the gate &gap& to deepen and become shallow. May cause the damage of the form Q value and the excitation of the light field deflection emission, reasonable grasp of the deformation parameters, can complete the micro flower cavity light field of the dual directional emission. Right angle FDTD method in the micro cavity simulation of artificial scattering consumption research and FDTD precision improvement research based on the rectangular grid step shape approximation in the eve of the amount of FDTD (finite difference time domain) algorithm in the use of. The introduction of the approximate boundaries of the step like boundaries leads to the lack of FDTD micro cavity simulation and analysis accuracy, and there is an unstable phenomenon, especially the high Q value calculation. Based on the consideration of the existence of the cavity on the micro polarization current scattering field of the impact of the volume of current approach (class VCM) can be a good description of FDTD circular cavity Q value of the low and unstable. The FDTD value is not stable in the step shape similar to the Q circular cavity, and the Q value of the scattering induction is changed with the calculation step. The class VCM method is not in the calculation of the FDTD scattering consumption, which can be used in the calculation of the scattering consumption caused by various parameters of the cavity. Ladder shaped boundary approximation inherent artificial scattering consumption limits in high Q value calculation using, and based on Cartesian grid for the effective dielectric constant approach (such as V EP, CP EP) in the absence of significant growth algorithm for the original complex character condition could be significantly improve the calculation accuracy, do not they a high Q value calculation still appears to be some lack of briefly and useful can be imitation, calculate the high Q value of micro cavity FDTD algorithm is still attractive. The WGM self consistent field description of the circular cavity and the interference of the multi layer circular cavity in the field of the intrinsic field refraction reflection model provides us a simple way to solve the scattering and resonance of the circular cavity or multi layer cavity by the direct method. Based on the intrinsic field of self (self consistent) image reconstruction, we can be simple and straight Ya solving circular cavity or multilayer circular cavity WGM results and a circular cavity, the intrinsic field of wave field - ray correspondence, this process based on double abstract. At the same time, based on the eigen field refraction reflection model, we can complete the simple solution to the scattering results of the circular cavity or multilayer circular cavity. The eigen wave number equation given by the eigen field refraction reflection model is also more suitable to study the characteristic of the mode spectrum of WGM. The interference modulation picture in the multi-layer circular cavity may also be based on the analysis of the invention and the invention of the eigen wave number equation by the eigen field refraction reflection model. In the understanding of the level, intervention modulation can be based on the coupling of multiple layers of circular cavity, external cavity WGM to be familiar with. The total cavity WGM spectrum of uncoupling WGM spectral of various cavities in a bar. Consider with coating layer of two layers of circular cavity, coupled WGM round WGM outside of the cavity and the ring cavity WGM resonance incurred between the strong mutual action and form, the intervention effect of WGM due to coupling similar symmetry and veto WGM said. The innermost circular cavity WGM because with the internal cavity WGM coupling can be individually emerging modulation scene, under the matching condition is not satisfied, inner circular cavity WGM field distribution of the concentrated in the external circular cavity, so
under the premise of marriage, coupled WGM field distribution in the internal cavity is in proportion, so consumption is bigger. If the WGM of the inner cavity is used to sing the working mode and the gain is applied to the inner circle, the gain of the WGM can also be modulated by the interference modulation characteristics. Based on the modulation characteristics of the internal WGM consumption and gain, interference modulation will be supplied to us in a fresh form selection method.目录:摘要5-7ABSTRACT7-8第一章 绪论11-29&&&&1.1 光学回音壁模简介11-14&&&&1.2 WGM微腔模式特性的研究与优化设计14-21&&&&&&&&1.2.1 方向性发射16-19&&&&&&&&1.2.2 多模抑制、简并模分裂与模式选择19-20&&&&&&&&1.2.3 其它模特性的分析与优化20-21&&&&1.3 本论文的主要研究内容和结构安排21-22&&&&参考文献22-29第二章 时域有限差分及其应用于微腔模式特性分析29-49&&&&2.1 FDTD简介29-39&&&&&&&&2.1.1 Maxwell旋度方程及其直角FDTD实现29-39&&&&2.2 FDTD应用于光学微腔模特性的分析39-46&&&&&&&&2.2.1 腔模激励40-42&&&&&&&&2.2.2 Pade近似42-46&&&&本章小节46&&&&参考文献46-49第三章 微腔模式特性分析的频域计算方法49-73&&&&3.1 有效折射率近似与微盘腔回音壁模的分离变数法求解49-56&&&&&&&&3.1.1 有效折射率近似49-53&&&&&&&&3.1.2 微盘腔回音壁模53-56&&&&3.2 边界积分方程及其应用于微腔模式特性分析56-68&&&&&&&&3.2.1 边界积分方程的导出56-60&&&&&&&&3.2.2 MBIE的求解60-64&&&&&&&&3.2.3 散射与谐振问题64-68&&&&3.3 其它频域方法简介68-71&&&&本章小节71&&&&参考文献71-73第四章 微盘腔内的模式选择、抑制及其光场发射方向性改进73-91&&&&4.1 微盘内的模式选择与抑制73-80&&&&&&&&4.1.1 微齿轮微腔73-77&&&&&&&&4.1.2 穿孔的微盘腔77-79&&&&&&&&4.1.3 多层毛细管腔79-80&&&&4.2 微盘腔光场发射方向性改进80-88&&&&本章小节88&&&&参考文献88-91第五章 直角FDTD在微腔模拟中的散射损耗及其改进91-111&&&&5.1 微腔微扰概述91-96&&&&&&&&5.1.1 简并模分裂与频率移动91-92&&&&&&&&5.1.2 损耗估计——Rayleigh散射与体积电流方法92-96&&&&5.2 直角FDTD高Q值圆腔模拟中的不稳定现象及其解释96-105&&&&&&&&5.2.1 直角FDTD高Q值圆腔模拟中的不稳定现象96-98&&&&&&&&5.2.2 类VCM方法98-102&&&&&&&&5.2.3 S-FDTD圆腔模拟中Q值不稳定性的解释102-105&&&&5.3 直角FDTD边界处理的改进105-109&&&&本章小节109&&&&参考文献109-111第六章 圆腔自洽场描述与多层同心圆腔中的干涉调制111-139&&&&6.1 圆腔与多层同心圆腔散射与谐振问题的本征场折射-反射模型111-121&&&&&&&&6.1.1 圆腔本征波场及其折射、反射特性111-116&&&&&&&&6.1.2 多层同心圆界面的组合折射、反射系数116-117&&&&&&&&6.1.3 基于本征场折射-反射模型对圆腔、多层同心圆腔散射问题的求解117-119&&&&&&&&6.1.4 基于本征场折、反射模型对于圆腔、多层同心圆腔谐振问题的求解119-121&&&&6.2 圆腔WGM自洽场描述121-126&&&&&&&&6.2.1 圆腔本征场的几何光学近似121-124&&&&&&&&6.2.2 圆腔WGM自洽形成的几何光学描述与谐振方程124-125&&&&&&&&6.2.3 损耗或Q值125-126&&&&6.3 多层同心圆腔中的干涉调制126-137&&&&&&&&6.3.1 调制现象及其内、外WGM的耦合解释127-133&&&&&&&&6.3.2 最佳界面反射率与调制周期133-136&&&&&&&&6.3.3 应用于多层毛细管实验的解释136-137&&&&本章小结137-138&&&&参考文献138-139第七章 总结与展望139-143&&&&7.1 总结139-140&&&&7.2 展望140-142&&&&参考文献142-143攻读学位期间所做的工作143-144致谢144-145分享到：相关文献|【图片】WGM！°｜150316。视频｜Henry 小提琴钢琴视频 omo简直帅爆了_我们结婚了吧_百度贴吧
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