Optical Coupling of Waveguide with the Super-Sphere of Glass Optical Resonator through the Near Field Optical Gate

采用离子交换处理方法在氧化玻璃衬底上制备埋地型光波导，利用接触STM探针电极的电场提取波导芯中的Ag+离子。因此，在波导上制备了不同尺寸的光门，并分别用原子力显微镜和光学显微镜观察了它们的外观和波导中传播光的输出效率。提取出的碱离子在探针电极上发生电化学反应转化为金属液滴，并在玻璃表面蚀刻成火山口形状，反映出从探针尖端延伸出的电场。FE-SEM分析还表明，部分提取的Ag+离子转化为金属态，在破火山口表面形成纳米颗粒。光传播实验清楚地表明，经过5nc以上的处理，所制备的光门能够发射出光，并保证了所制备的芯部Ag+离子的细剖面能很好地作为埋地型波导的光门。利用高折射率玻璃，采用表面张力模（StM）技术制备了微米级超球面玻璃颗粒。由于高折射率玻璃具有较高的结晶倾向，对其温度处理也进行了优化。制备的玻璃超球表面光滑，球度好，适合于光学谐振腔。采用StM技术制备了微米级的含光学活性掺杂离子的超球。这些微超球的激光激发实验显示出基于高q因子的窃窃廊模式的振荡，并充当了激光器件。它们适用于以电场和SPM探针为电极，经离子交换处理制备的埋式光波导上的光门的光耦合。少

Buried-type optical waveguide was fabricated in the oxide glass substrate by the ion-exchange treatment, and Ag+ ions in the core of the waveguide were extracted by the electric field from the contacted STM probe electrode. As a result, the optical gates with various sizes were prepared on the waveguide, and their appearance and the output efficiency of the propagating light in the waveguide were examined by atomic force microscope, and optical microscope, respectively. The extracted alkali ions, which are followed by the movement of Ag+ ions, were converted into metal droplet by the electrochemical reaction on the probe electrode, and etched the glass surface into the caldera shape, which reflects the electric field extending from the probe tip. FE-SEM analysis also showed that some parts of the extracted Ag+ ions were converted into the metallic state and form the nano-particles on the caldera surface. The light propagation experiment clearly showed that the light was emitted from th … More e prepared optical gate by the treatment over 5 nC, and ensured that the prepared fine profiles of Ag+ ions from the core work well as the optical gate of the buried-type waveguide.Micrometer-sized super-spherical glass particles were also fabricated using the glass with high refractive index by Surface-tension Mold (StM) technique. The temperature treatment was also optimized for the high refractive index glasses because they have relatively high crystallization tendency. The fabricated glass super-spheres were found to have smooth surface and good sphericity suitable for the optical resonator. Micrometer-size super-spheres containing optically active dopant ions were also prepared by StM technique. Laser excitation experiments of these micro-super spheres showed the oscillations based on the Whispering Gallery Modes with high Q-factor, and acted as a laser devises. They are confirmed to be applicable for the optical coupling with the optical gates on the buried-type optical waveguide prepared by the ion-exchange treatment using the electric field and SPM probes as an electrode. Less