谐振腔

Prelase Q-switching method: By using output laser intensity to negatively feedback control the cavity loss, a smooth and quasi-continuous prelase of ～100μs width is built, then the cavity is Q-switched during prelase.

预激光调Q法：用输出激光强度来负反馈控制谐振腔的损耗，建立一个平坦的、准连续的～100μs宽预激光状态，然后在此预激光基础上调Q。

The innovations of the dissertation are given below: 1、Through many times simulation, we find that the suitable adjustment the dielectric rod radius between defect waveguide and resonant cavity can be greatly improved the efficiency of coupling.

本论文的创新点主要包括以下三个方面：1、通过多次仿真，发现适当调整波导与缺陷谐振腔之间介质柱半径的大小能较大幅度的提高耦合效率。

They are still in use today because they are well-understood and easy to fabricate, but have a number of disadvantages compared to devices based on photonic crystals.

这种谐振腔之所以仍在使用，是因为其更易于理解和装配，但是较之于基于光子晶体的设备来说，则具有很多的不足。

So far, there are many kinds of methods to analyze the wave guide and resonance cavitie problem. Some very complicated ones have not been solved conveniently and efficiently, however.

迄今为止，分析波导和谐振腔问题的方法有很多种，但对于一些较复杂的电磁场边值问题并不都是可以得到方便而有效的解决。

The new method of Fourier's expansion-difference method that was presented newly for analyzing arbitrary-shaped grooveguide is adopted in order to solve some practical application problems of wave guide in this paper.

为了更便捷地解决波导和谐振腔的实际应用问题，本文采用已提出的一种分析任意截面槽波导的傅立叶展开-差分法对这类电磁场边值问题进行分析计算。

Because the sensors in the electromagnetic field are large, the temperature of the micro hot spot cannot be measured.

但在实际的应用中，对于谐振腔内部的电磁场分布和温度分布的测量是比较困难的，需要将多个感应探头放置于反应场中进行感应测量，而感应器本身的介入对电磁场分布和温度分布就产生了改变，并且宏观的感应器是不可能测试出微观中存在的局部点的过热现象。

A 9 -Bit square lattice gas model with temperature was introduced. We fulfilled an acoustic driver using Monte Carlo Method. Using this driver to generate plane waves, a standing sound wave was established in a two\|dimensional pipe.

引入带温度的 9- Bit正方形格子气自动机模型，利用MonteCarlo方法模拟声源并激发平面波，在二维谐振腔中建立了声驻波场。

The external diameter of a quartz liner is determined to be 36-46mm, the inner diameter to be 32-40mm and the length of the liner to be 1.45-1.85m for the process of PCVD. Parameters of a processing technology are that the high frequency power of a microwave resonator is controlled to be 6KW-15KW and the deposition temperature is 1080-1130 degree Celsius. The variety of mixed air flowing through the liner includes silicon tetrachloride vapor, germanium tetrachloride vapor, high-purity oxygen and Freon. The inside pressure of the liner is 10-15millibar. The air flow rate inside the liner is

取石英衬管的外径为36～46毫米、内径32～40毫米，衬管长度1.45～1.85米，进行PCVD加工；加工工艺的参数为：微波谐振腔的高频功率控制在6KW～15KW，沉积温度1080℃～1130℃，流经衬管管内混合气体的种类：四氯化硅蒸气、四氯化锗蒸气、高纯氧气、氟里昂，衬管的管内压力为10-15毫巴，管内气体流速为30-80米/秒，气体体积流量为4400SCCM-8800SCCM。

Observed from the resonance curve, the free spectral range of the resonator, the fu...

由上述谐振腔参数计算得到该系统的极限灵敏度为4×10-7rad/s。

Furthermore, the calculation precision can be satisfied the need of engineering application in waveguide. So it is of important application values that producing and improving of the new method and application in waveguide and resonance cavity for enriching guide theory, analysis and calculation of guide performances in engineering applications.

因此，该方法的完善与计算精度的改进以及在波导和谐振腔问题中的应用研究，不仅对于丰富电磁理论有着重要的意义，而且对于解决实际电磁工程问题也有着重要的应用价值。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。