The reflective characteristics of SAW by slanting metal strips on the surface of YZ - LiNbO3 have been studied. By using both Simple Model and Multi - Reflection Model, the reflective characteristics of SAW by a perio...The reflective characteristics of SAW by slanting metal strips on the surface of YZ - LiNbO3 have been studied. By using both Simple Model and Multi - Reflection Model, the reflective characteristics of SAW by a periodic metal strip array and the SAW distribution in the array have been calculated. Furthermore, by using an improved laser probe, the reflective SAW field by the array has also been measured. By comparing the theoretical results with the experiments, it is shown that the results of Multi - Reflection Model, being more exact than the simple one, are in better agreement with the experiment.展开更多
文摘The reflective characteristics of SAW by slanting metal strips on the surface of YZ - LiNbO3 have been studied. By using both Simple Model and Multi - Reflection Model, the reflective characteristics of SAW by a periodic metal strip array and the SAW distribution in the array have been calculated. Furthermore, by using an improved laser probe, the reflective SAW field by the array has also been measured. By comparing the theoretical results with the experiments, it is shown that the results of Multi - Reflection Model, being more exact than the simple one, are in better agreement with the experiment.
