The research and development of the new devices by the simultaneous control of the electrons and photons

采用自克隆技术在三角形晶格基片上制备了可见-紫外波段的三维Ta 2 O 5/SiO2光子晶体，并研究了其面内（XY平面）光学特性。通过光垂直入射到光子晶体的解理面上的反射测量揭示了在某些光子能量下的最大反射。与计算的能带结构的比较表明，反射峰是由于光子带隙（PBG）内的光传播是禁止的，或由于重光子与平坦带。采用两步沉积法将发光样品插入光子晶体中，并对光子晶体的发光特性进行了强烈的调节，研究了晶格间距呈系统分布的圆形光子晶体（CPC）的光学特性。在0 ~ 20 GHz的频率范围内对由氧化铝柱组成的CPC的透射谱进行了研究。我们发现，光子带隙不仅在CPC，而且在相移CPC。各向同性的光子带隙的毫米波的入射角的变化证明。

Three-dimensional(3D) Ta_2O_5/SiO_2 photonic crystals in the visible-violet spectral region are fabricated by an auto-cloning technique on patterned substrates with triangular lattice configurations and their in-plane (the stack XY plane) optical properties are studied. Reflection measurements by normal incidence of light on to the cleaved facet of the photonic crystal reveal maximum reflections at certain photon energies. Comparison with calculated band structure demonstrates that the reflection peaks are either due to the photonic bandgap(PBG) within which the light propagation is forbidden, or due to heavy photons associated with flat bands. A two-step deposition method is adopted to insert luminescent sample into the photonic crystal and the emission property is strongly modified by the photonic crystal.We investigated the optical properties of a circular photonic crystal(CPC) for which the distance between lattices was systematically distributed. The transmission spectra of CPC composed of alumina cylinders were examined in the frequency region from 0 to 20 GHz. We show that photonic gaps are obtained not only in CPCs but also in phase-shifted CPCs. The isotropic photonic gaps are evidenced by changes in the incident angle of a millimeter wave.