Zno is a - semiconductor material with wide band - gap , which has hexagonal wurtzite structure . zno thin films were widely applied in solar cell , uv detector , lighting displayer , saw device , gas sensor et al for their excellent physical properties 氧化锌( zno )是一种具有六方纤锌矿晶体结构的宽禁带-族半导体材料,由于其优良的物理特性, zno薄膜在太阳能电池、紫外探测器、发光显示器件、声表面波器件、气敏传感器等方面得到了广泛的应用。
In the aspect of saw devices , for zno has high coupling factor , and aln has high saw velocity , if zno thin film was deposited on aln thin film , the multiplayer film has not only high coupling factor , but also has high saw velocity , which was suitable for saw of high frequency 在声表面波器件应用方面,由于zno具有很大的机电耦合系数,而aln的声表面波传播速度较高,因此若zno和aln相结合,则不仅具有大的机电耦合系数,而且具有很高的声表面波速度,这非常适合于制造高频声表面波器件。
Acoustooptic deflector is the significant component of the optical devices such as integrated optical spectrograph , tunable filter , scanner , convolver , correlator and optical switch etc . acoustooptic deflector can be divided into collinear and non - collinear , bulky and wave - guided , body devices and surface devices 声光偏转器是集成光学频谱仪、可调谐滤波器、扫描仪、卷积器等光学器件的重要组件、声光偏转器可分为共线式和非共线式、块体型和波导型以及体波器件和表面波器件。