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The tunable photon broad band radio frequency phaser based on a silicon ring resonance cavity comprises a pumping signal light-generating system, a carrier wave light-restraining double-sideband generating system, a silicon ring resonance system and a measuring system; wherein, the silicon ring resonance system comprises a light coupling device and the silicon ring resonance cavity; the output of the light coupling device is connected with the input port of the silicon ring resonance cavity; wherein, the silicon ring resonance cavity is composed of a silicon annulet and a root of a straight waveguide; the air gap distance between the silicon annulet and the root of the straight waveguide is several ten nanometers or several hundred nanometers; the taking characteristic of the silicon ring resonance cavity is the characteristic of a seasonal reject trap; the transmission rate in the position of a resonance wavelength is equal to zero or is very close to zero.

本发明包括:泵浦信号光发生系统、载波抑制光双边带产生系统,硅基环形谐振腔系统,以及测量系统。所述硅基环形谐振腔系统包括一个光耦合器和一个硅基环形谐振腔,光耦合器的输出连接到硅基环形谐振腔的输入端口,其中:硅基环形谐振腔由一个硅基微环和一根直波导构成,硅基微环和一根直波导之间的空气隙间隔为几十至几百纳米,硅基环形谐振腔频谱特征是周期性的带阻滤波特性,在谐振波长处的透射率等于0或非常接近0。

A simultaneous dual-wavelength continuous wave, quasi-cw or linearly polarized wave diode-end-pumped Nd:YAG laser operating at 1319nm and 1338nm is demonstrated. To the best of our knowledge, our experimental results achieve the highest level in the domestic domain. The simultaneous dual-wavelength laser provides an experimental basis for generating highly coherent THz wave radiation of 3.23THz by nonlinear optical difference frequency method.2. A diode-end-pumped Nd:YAG crystal, type-I critical phase matching LBO crystal intra-cavity frequency doubled, simultaneous multi-wavelength red laser at 659.5nm, 664nm and 669nm is firstly realized.

本论文主要围绕用于差频产生THz辐射源的多波长激光器及THz光子晶体的带隙特性分析而展开,论文的主要内容包括:一、从LD端面泵浦固体激光器的激光阈值公式出发,理论计算了腔镜对于两个波长的透过率关系,实现了LD端面泵浦Nd:YAG 1319nm/1338nm双波长激光连续、准连续及线偏振稳定输出。

According to the requests, the curve is changed into abstractive dimension of the mould inner space.

在分析结晶器内坯壳和气隙形成机理的基础上,提出了结晶器锥度设计原则,并建立锥度计算模型,优化设计出三种不同形式的抛物线锥度结晶器,可依据不同工艺条件设计出锥度变化的曲线,并可根据要求转化成内腔绝对尺寸。

The approximate calculating method is proposed for the low loss and thin flake material perturbation outside of the cavity. The measured complex permittivities of teflon,polyvinyl chloride ,pure ceramic flake are in good agreements with the standard data.

在隙缝辐射较小的条件下,提出适于损耗小,厚度薄(1mm左右)的片状材料腔外微扰的近似计算方法,测得聚四氟乙烯、聚氯乙烯、纯陶瓷片等复介电常数与准确值相当吻合的结果。

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Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。