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超声跟踪反常声光偏转器优化设计

Keywords: 超声跟踪,声光效应,声光偏转器,LiNbO_3

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Abstract:

以超声跟踪反常声光器件的设计思想为基础,讨论了超声跟踪LiNbO_3反常声光器件的设计思路和具体方法.对平面结构和阶梯结构2种情况下超声跟踪LiNbO_3声光器件的优化设计进行了系统的研究和计算.结果表明,利用超声跟踪方法可以实现反常声光器件的优化设计,能获得较宽的带宽以及更高的衍射效率.同时,阶梯结构一级超声跟踪可以有效提高超声波的能量利用率.

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