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硅材料在红外通讯波段具有低损耗和高折射率的特性,使得其成为集成光学领域中应用最广的材料之一。主要介绍了本课题组在二维硅基平板光子晶体中实现微纳尺度上光调控的研究进展,讨论了利用光子晶体的缺陷态实现各种集成光学器件,包括光子晶体波导、微腔和利用光子晶体波导和微腔形成的滤波器。还介绍了光子晶体中特殊的光折射现象,包括红外波段的负折射和自准直现象。另外,简述了在高Q光子晶体微腔的制备和测量方面的研究进展。研究表明,硅基平板光子晶体能够在微纳尺度上灵活有效地控制光的传播,在集成光路中具有广泛的应用前景。
Silicon material has the characteristics of low loss and high refractive index in the infrared communication band, making it one of the most widely used materials in the field of integrated optics. This paper mainly introduces the research progress of micro-and nano-scale light regulation in two-dimensional silicon-based flat photonic crystals, and discusses the use of the defect states of photonic crystals to realize various integrated optics, including photonic crystal waveguides, microcavities, and utilization Photonic crystal waveguide and microcavity filter formed. The special photorefractive phenomenon in photonic crystals is also introduced, including the negative refraction and self-collimation in the infrared band. In addition, the research progress in the preparation and measurement of high Q photonic crystal microcavities is briefly described. The research shows that the silicon-based photonic crystal can control the light propagation flexibly and effectively on the micro-nano scale and has a wide range of application prospects in the integrated optical path.