本文提出了一种新的调节人工欧泊晶体的光学带隙的方法。
A new method has been proposed to modify the photonic band gap of synthetic opal.
溅射温度越高，薄膜在紫外可见光波段内透射越弱，光学带隙越小。
As the depositing temperature got higher, the transmittance of TiOx thin film in the UV-VIS spectral and the bad-gap would decrease.
实验所得薄膜的光学带隙和暗电导也随衬底温度升高而分别降低和升高。
The optical band gaps of the grown thin films declined and dark electrical conductivity increased with increasing substrate temperature, respectively.
紫外吸收峰变窄，强度增加，吸收边变得陡峭并向长波方向移动，光学带隙降低。
The ultraviolet absorption peak narrows, absorption intensity increases, the absorption margin becomes steep and moves to longer wavelength, the optical band gap decreases as well.
这种复合结构体系具有直接带隙半导体的光学特性。
Meanwhile the composite exhibits the optical features of a semiconductor with direct band gap.
用光学透射测量方法得到了该薄膜材料的基本光学常数（带隙、线性折射率、线性吸收系数）。
The band gap, linear refractive indices and absorption coefficients fundamental optical constants of the film were obtained through optical transmittance measurements.
光子晶体的应用源于光子晶体所具有的各种特殊光学和电学性质，而这些性质又是由晶体的光子带隙结构决定的。
The applications of photonic crystals are attributed to the special properties of electronic and optic area, and such properties are depend on photonic band structures.
如无规亚光学波长结构的光子局域或随机行走增强，有规亚光学波长结构的光子带隙。
In its random structure the optical processes will be enhanced by localization or random walking of coherent light; while photonic band-gap appears in its regular structure.
光子晶体的基本特征是具有光子带隙，频率落在带隙中的光将不能传播，这使其比普通光学材料具有更广泛的应用。
The transmittance of light is forbidden in a wavelength range called photonic band gap. Photonic crystals have broader application prospect than common optical materials.
因此，对于光子晶体的带隙及其光学传输特性的研究是对光子晶体进行基础性研究的重要内容。
So, the study on photonic band gap structure is an important part of basic research on photonic crystals.
因此，对于光子晶体的带隙及其光学传输特性的研究是对光子晶体进行基础性研究的重要内容。
So, the study on photonic band gap structure is an important part of basic research on photonic crystals.
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