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石英     
相关语句
  silica
    Transmission Characteristics of Fused Silica Fibers at High-Power UV Excimer Laser Wavelength
    纯石英光纤的高功率紫外激光传输特性
短句来源
    FREQUENCY UPCONVERSION IN TM~(3+)-DOPED SILICA FIBERS IN THE VISIBLE REGION
    掺Tm~(3+)石英光纤中频率上转换产生可见光的实验研究
短句来源
    Fabrication of Zero order Nulled Silica Phase Masks for 248 nm KrF Excimer Laser
    248 nm KrF准分子激光零级抑制石英相位掩模器的研制
短句来源
    Stimulated Raman Scattering and Stimulated Four photon Mixing in Er doped Silica Fiber
    掺铒石英光纤中的受激拉曼散射及受激四光子混频
短句来源
    Frequency Upconversion in Homemade Tm 3+ Doped Silica Fibers Pumped by 1053nm
    掺Tm~(3+)石英光纤频率上转换过程的实验研究
短句来源
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  fused quartz
    The Ba0.65Sr0.35TiO3 thin films were prepared by sol-gel method on fused quartz and Al2O3 substrates. The structure and crystalline characterization were studied by XRD and SEM.
    用溶胶–凝胶法在石英和Al2O3单晶衬底上沉积Ba0.65Sr0.35TiO3薄膜,应用XRD与SEM表征了BST薄膜的晶化行为和表面形貌。
短句来源
    Dispersion characteristics of fused quartz prism and its applications in solid-state lasers
    熔石英棱镜的色散特性和在固体激光器中的应用
短句来源
    The laser crystallization of a-Si:H on different substrates was carried out. High qualitycrystallized films have been obtained on fused quartz,but not on SiO_2/Si substrates because ofthe generation of bubbles and holes. For crystallization on WSi_2/Si, a higher power must besupplied and grain size is not large enough.
    文章报道了a-Si∶H在石英,SiO_2/Si,WSi_2/Si和Al/Si四种不同衬底上激光结合的结果.
短句来源
    A fused quartz blazed grating of 1200 lines/mm with blazed angle 5°10' was fabricated by holograph-ion ham etching technique. The exposure, development and etch conditions for fabricating grating are inverstigated. The finished blazed grating is tested on a Seya-Namioka monochromator for photochemistry at National Synchrotron Radiation Laboratory.
    采用全息-离子束刻蚀微细加工技术在石英基板上成功地刻蚀出了1200线/mm、闪耀角5°10’的锯齿槽形闪耀光栅.对全息光刻、显影等掩模制作工艺和离子束刻蚀参数的控制等进行了讨论,还给出了在同步辐射光化学光束线上的测试结果.
短句来源
    The linear cylinder microlens arrays in fused quartz were fabricated by ion beam etching, the YBa 2Cu 3O 7 δ high Tc superconducting thin film were deposited by excimer laser scanning ablation, and the superconducting thin film detectors were patterned by photolithography method. The hybrid IR detecting device was made by using the special glue to couple the micro optical device. The optical response characteristics of the device fabricated in the region of 1~5μm IR optical spectrum were investigated.
    采用离子束刻蚀制备线列熔凝石英柱微透镜阵列,准分子激光扫描消融法淀积性能均匀且稳定性良好的YBa2Cu3O7-δ高温超导薄膜,湿法刻蚀制备超导薄膜器件,微透镜阵列与超导薄膜器件用胶粘合构成组合红外探测器,测试了组合器件在1~5m红外波段的光响应特性.
短句来源
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  crystal quartz
    Nd:YAG laser longitudinal mode splitting phenomenon by ntracavity crystal quartz plate
    腔内石英晶片产生的Nd:YAG激光纵模分裂现象
短句来源
    Wavelength tuning is realized from 810 to 890 nm continuously by a two plate crystal quartz birefringent filter (BRF).
    在腔内加入一石英双折射滤光片(BRF)作为调谐元件,波长可在810~890nm范围内连续可调。
短句来源
    In order to produce 1.06μm wavelength dual frequency laser beam, the diode pumped Nd:YAG laser longitudinal mode splitting phenomenon, caused by an intracavity crystal quartz plate, is investigated experimentally. With the quart plate funing the two frequencies have been observed and the frequency difference between the ordinary and extraordinary modes can be tuned over a longitudinal mode spacing.
    为了获得1.06μm波长的双频激光,在二极管泵浦Nd:YAG激光器的谐振腔内放置一石英晶片,观察到了纵模分裂现象,分裂量(即频率差)可随晶片的转动而在整个纵模间隔上调谐。
短句来源
    The ordinary and extraordinary modes can not oscillate simultaneously when the cavity contains both a mode selector of fused quartz Fabry Perot etalon and a mode splitter of crystal quartz plate.
    当腔内既有选模元件(熔凝石英F-P标准具)又有石英晶片时,同样能够产生纵模分裂现象(产生两个频率),但o模和e模不能同时起振。
短句来源
  quartz crystals
    An Analysis of Resonance Frequency of Quartz Crystals Oscillator
    论石英晶体振荡器谐振频率
短句来源
    Birefringent quartz crystals′ light splitting characteristic is used in optical low pass filter(OLPF).
    光学低通滤波器(optical low pass filter,简称OLPF)利用石英双折射晶体的分光性质来实现低通滤波。
短句来源
    Based on the principle of quartz crystals, ceramic traps and ceramic filters, this paper develops the models of these devices by the CAD software of SPICE in computer.
    本文从石英晶体、陶瓷陷波器、陶瓷滤波器的物理机理出发,在计算机中,建立了用SPICE程序描述这些器件的模型。
短句来源
    This paper analyses the resonance frequency of quartz crystals under the conditions of both dynamic resis-tance negligence and its non-negibleness, as well as the effect on oscillatory frequency by factors of quality.
    分析研究了石英晶体在动态电阻忽略和不可忽略两种情况下的谐振频率,及品质因数对振荡频率的影响。
短句来源
    Development of a smaller size and high frequency devices need some quartz crystals that have low etch channel density.
    小型化高频器件的发展 ,需要一些低隧道密度压电石英晶体 .
短句来源
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      silica
    Preparation and Evaluation of 3,5-Dinitrobenzoyl-Bonded Silica Gel Stationary Phase for HPLC
          
    In this paper, a new preparation method of 3,5-dinitrobenzoyl-bonded silica gel stationary phase (DNB) for HPLC was developed by using N-(β-aminoethyl)-γ-aminopropyl-methyldimethoxy silane as coupling reagent.
          
    The samples were extracted with methanol-water (volume ratio), The extracts were cleaned up with a column of silica gel.
          
    Water-borne raspberry-like PMMA/SiO2 nanocom-posite particles were prepared via free radical copolymerization of methyl methacrylate (MMA) with 1-vinylimidazole (1-VID) in the presence of ultrafine aqueous silica sols.
          
    The average particle sizes and the silica contents of the nanocomposite particles were in the ranges from 120-330 nm and 15%-20%, respectively.
          
    更多          
      fused quartz
    Adsorption isotherm of cationic polyelectrolyte, poly(styrene-co-dimethylaminopropylmaleimide), (molecular mass is 2 × 104) on the surface of fused quartz in aqueous 10-4 M KCl solution at pH 3 was measured by the method of capillary electrokinetics.
          
    The Effect of Composition of Water-Ethanol Solutions on the Kinetics of Coagulation of Fused Quartz Suspensions
          
    The effect of composition of water-ethanol solutions containing 0-96 vol % alcohol on the coagulation kinetics of dilute fused quartz suspensions is studied using flow ultramicroscopy technique.
          
    Regularities of the Two-Layer Adsorption of Anionic Surfactant and Cationic Polyelectrolyte on the Fused Quartz Surface
          
    Permittivities of Ftoroplast-4 fluoroplastic, fused quartz, single-crystal quartz, and other dielectrics measured in a frequency band of 10-70 GHz are presented.
          
    更多          
      crystal quartz
    Permittivities of Ftoroplast-4 fluoroplastic, fused quartz, single-crystal quartz, and other dielectrics measured in a frequency band of 10-70 GHz are presented.
          
    KTN thin films prepared by pulsed laser deposition on transparent single crystal quartz (100)
          
    Finally, measurements have been made on some single-crystal quartz specimens using an automated open resonator measurement system at 8mm band.
          
    Raman scattering by hot and thermal polaritons in crystal quartz
          
    coherent Raman scattering by polaritons driven by a CO2 laser, has been used to obtain the dispersion curve and its width inq-space of the polariton associated to theE-phonon at 1065 cm-1 in crystal quartz.
          
    更多          
      quartz crystals
    An X-ray monochromator consisting of four bent cylindrical quartz crystals is described.
          
    It has been established with the aid of a double-crystal X-ray diffractometer that the nonuniform curvature of cylindrically, spherically, or thoroidally bent silicon and quartz crystals is of a periodic character.
          
    The solubility and diffusion of helium in quartz crystals are investigated as functions of the distribution and density of structural defects.
          
    Argon and helium isotopes and the main fluid components in the quartz crystals from the subpolar ural
          
    Laue-geometry X-ray diffraction has been studied experimentally in quartz crystals excited by bulk acoustic waves.
          
    更多          


    InGaAsP/InP four layer double heterostrueture wafers have been grown by liquidphase epitaxy.The conditions needed for growing InGaAsP/InP and InP/InGaAsP he-terojunetions with flat interfaces and high crystal quality have been inverstigated.The heterojunction lattice mismatch was measured and LPE conditions for latticematched-heterojunctions established.The influence of various concentrations of Te andZn in the melt on the carrier concentrations ia the LPE layers of InP as well asthe effect of zinc doping conditions...

    InGaAsP/InP four layer double heterostrueture wafers have been grown by liquidphase epitaxy.The conditions needed for growing InGaAsP/InP and InP/InGaAsP he-terojunetions with flat interfaces and high crystal quality have been inverstigated.The heterojunction lattice mismatch was measured and LPE conditions for latticematched-heterojunctions established.The influence of various concentrations of Te andZn in the melt on the carrier concentrations ia the LPE layers of InP as well asthe effect of zinc doping conditions on the junction position, injection efficiency ofthe p-n junctions and other junction properties were investigated. Stripe geometryInGaAsP/InP DH lasers were fabricated by the use of proton bombardment.Thewavelength of the lasers operating continuously at room temperature (300K) was1.30-1.33 μm. The room temperature threshold current density of the broad contactlasers was 2000A/cm~2 and the normalized threshold current density 5 kA/cm~2 μ.The temperature dependence of the threshold current between 80-330 K was measuredand the characteristic temperature T_0 found to be 79-108 K in the range of 80-285Kand around room temperature T_0=63-73K. Continuous operation of more than3000 hours has been achieved under atmospheric conditions.

    用液相外延方法生长了InGaAsP/InP四层双异质结,采用了镀金石英玻璃炉和水平滑动式石墨舟.研究了外延生长界面平直晶体质量好的InGaAsP/InP和InP/InGaAsP异质结的工艺细节.测量了异质结晶格失配度,确定了异质结匹配生长条件。研究了在InP液相外延中锌和碲的掺杂规律,分析了掺锌工艺对p-n结的位置、结的注入效率和其它结特性的影响.制作了质子轰击条形InGaAsP/InP DH激光器.在室温(300K)连续激射波长为1.30-1.33μm.室温宽接触激光器的阈电流密度为2000A/cm~2,规一化阈电流密度为5kA/cm~2·μ.测量了阈电流随温度的变化,在80—285K范围内特征温度T_o=79-108K,室温附近T_o=63-73K.选择两只激光器作了长期工作实验,其中一只寿命为560小时,另一只已经工作2500 小时,现仍在继续工作中.

    The paper presents a simple improvement of a commercial thickness monitor of the quartz crystat.In the 5—45μ thickness range,the deposition rate and its thickness is measured in the vacuum deposition.Using this method,the dependence of electrical propcrties of CdS films on the deposition rate has been studied,more understanding relationship between the performances of CuS/CdS solar cells and the deposition rate.

    本文叙述了石英晶体监测膜厚方法的简单改进。在5~45微米膜厚范围内,在真空镀膜过程中,监测沉积速率和膜厚。并且利用这种方法,研究了真空沉积 Cds 膜的电学性质与沉积速率的关系,进一步研究了 Cu_2S/CdS 太阳能电池的性能与沉积速率的关系。

    In this paper, it is indicated that laser forward scattering pattern can also be used to insure good oentricity of silicone resin coated silica optical fibers. The generation and change of the pattern are explained by ray-optics principle. The feasibility of actual application of laser forward scattering pattern during the drawing-coating process is confirmed.

    激光前向散射技术也能用来保证硅树脂涂复石英光纤的同心度。本文用射线光学的原理解释了散射图形的产生及其变化,介绍了同心度监视方法在随机拉丝中的应用结果。

     
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